© Doc Brown's 3 min Christmas CHEMISTRY QUIZ for teenagers of any age! Click [?] (qizsci re-edit 04/12/2022)

Which element of the periodic table is a Group 1 Alkali Metal?
1. sodium (Na)
2. magnesium (Mg)
3. chlorine (Cl)
4. xenon (Xe)
5. iron (Fe)
6. neodymium (Nd)
Which element of the periodic table is a Group 2 Alkaline Earth Metal?
1. sodium (Na)
2. magnesium (Mg)
3. chlorine (Cl)
4. xenon (Xe)
5. iron (Fe)
6. neodymium (Nd)
Which element of the periodic table is a Group 7 (17) Halogen?
1. sodium (Na)
2. magnesium (Mg)
3. chlorine (Cl)
4. xenon (Xe)
5. iron (Fe)
6. neodymium (Nd)
Which element of the periodic table is a Group 0 (8, 18) Noble Gas?
1. sodium (Na)
2. magnesium (Mg)
3. chlorine (Cl)
4. xenon (Xe)
5. iron (Fe)
6. neodymium (Nd)
Which element of the periodic table is a Transition Metal?
1. sodium (Na)
2. magnesium (Mg)
3. chlorine (Cl)
4. xenon (Xe)
5. iron (Fe)
6. neodymium (Nd)
Which element of the periodic table is a Rare Earth Metal?
1. sodium (Na)
2. magnesium (Mg)
3. chlorine (Cl)
4. xenon (Xe)
5. iron (Fe)
6. neodymium (Nd)
Which of the following terms means the state change of liquid to gas?
1. boiling
2. freezing
3. melting
4. condensing
5. sublimation
Which of the following terms means the state change of liquid to solid?
1. boiling
2. freezing
3. melting
4. condensing
5. sublimation
Which of the following terms means the state change of solid to liquid?
1. boiling
2. freezing
3. melting
4. condensing
5. sublimation
Which of the following terms means the state change of gas to liquid?
1. boiling
2. freezing
3. melting
4. condensing
5. sublimation
Which of the following terms means the state change of solid to gas?
1. boiling
2. freezing
3. melting
4. condensing
5. sublimation
Which of the following terms means the state change of liquid to gas?
1. vaporisation
2. freezing
3. melting
4. condensing
5. sublimation
Which of the following terms means the state change of liquid to gas?
1. sublimation
2. freezing
3. melting
4. condensing
5. evaporation
What danger does this hazard warning sign indicate?
1. oxidant
2. harmful
3. corrosive
4. flammable
5. toxic
6. explosive
What danger does this hazard warning sign indicate?
1. oxidant
2. harmful
3. corrosive
4. flammable
5. toxic
6. biohazard
What danger does this hazard warning sign indicate?
1. oxidant
2. irritant
3. corrosive
4. flammable
5. toxic
6. biohazard
What danger does this hazard warning sign indicate?
1. oxidant
2. irritant
3. corrosive
4. flammable
5. toxic
6. biohazard
What danger does this hazard warning sign indicate?
1. oxidant
2. irritant
3. corrosive
4. flammable
5. toxic
6. explosive
What danger does this hazard warning sign indicate?
1. oxidant
2. irritant
3. corrosive
4. radioactive
5. toxic
6. explosive
What danger does this hazard warning sign indicate?
1. oxidant
2. biohazard
3. corrosive
4. radioactive
5. toxic
6. explosive
What danger does this hazard warning sign indicate?
1. explosive
2. biohazard
3. corrosive
4. radioactive
5. toxic
6. flammable
What danger does this hazard warning sign indicate?
1. explosive
2. biohazard
3. corrosive
4. radioactive
5. toxic
6. oxidant
Which word means 'a substance that dissolves in a liquid'?
1. solute
2. solvent
3. solution
4. suspension
Which word means 'a liquid that dissolves substances'?
1. solute
2. solvent
3. solution
4. suspension
Which word means 'a liquid that contains a dissolved substance'?
1. solute
2. solvent
3. solution
4. suspension
Which word means 'a mixture of a liquid and solid that looks cloudy'?
1. solute
2. solvent
3. solution
4. suspension
Which element used in roofing corrodes to form a brown oxide compound?
1. iron (Fe)
2. copper (Cu)
3. lead (Pb)
4. silver (Ag)
Which element used in roofing corrodes to form a green basic carbonate compound?
1. iron (Fe)
2. copper (Cu)
3. lead (Pb)
4. silver (Ag)
Which element used in roofing corrodes to form a white oxide compound?
1. iron (Fe)
2. copper (Cu)
3. lead (Pb)
4. silver (Ag)
Which element used in cutlery corrodes to give a yellow => brown => black sulfide compound? (with less air pollution these days, not as evident as it was!)
1. iron (Fe)
2. copper (Cu)
3. lead (Pb)
4. silver (Ag)
Which of the following is a sedimentary rock?
1. sandstone
2. slate
3. marble
4. granite
5. basalt
Which of the following is a sedimentary rock?
1. pumice
2. shale
3. obsidian
4. schist
5. gneiss
Which of the following is a sedimentary rock from which oil is extracted?
1. sandstone
2. shale
3. slate
4. schist
5. limestone
Which of the following is a sedimentary rock?
1. slate
2. marble
3. limestone
4. pumice
5. obsidian
Which of the following is a sedimentary rock?
1. gneiss
2. granite
3. basalt
4. mudstone
5. marble
Which of the following is a metamorphic rock?
1. slate
2. sandstone
3. shale
4. pumice
5. basalt
Which of the following is a metamorphic rock?
1. mudstone
2. marble
3. sandstone
4. granite
5. basalt
Which of the following is a metamorphic rock?
1. shale
2. limestone
3. schist
4. pumice
5. granite
Which of the following is a metamorphic rock?
1. limestone
2. mudstone
3. basalt
4. gneiss
5. granite
Which of the following is an igneous rock?
1. granite
2. limestone
3. sandstone
4. marble
5. slate
Which of the following is an igneous rock?
1. shale
2. basalt
3. sandstone
4. slate
5. marble
Which of the following is an igneous rock?
1. mudstone
2. limestone
3. pumice
4. schist
5. marble
Which of the following is an igneous rock?
1. slate
2. limestone
3. sandstone
4. obsidian
5. marble
Sulfuric acid is a strong acid used in car batteries, what might the pH of battery acid be?
1. pH 1
2. pH 3
3. pH 7
4. pH 11
5. pH 13
Vinegar is a solution containing the weak organic acid ethanoic acid (acetic acid). What might the pH of vinegar be?
1. pH 1
2. pH 3
3. pH 7
4. pH 11
5. pH 13
Sodium chloride is the main ingredient in cooking salt. When dissolved in water, what might the pH of the solution be?
1. pH 1
2. pH 3
3. pH 7
4. pH 11
5. pH 13
Ammonia is a weak alkali used in oven cleaning fluids. What might the pH of this household cleaning fluid be?
1. pH 1
2. pH 3
3. pH 7
4. pH 11
5. pH 13
Sodium hydroxide (caustic soda) is a strong alkali used in drain cleaning fluids. What might the pH of this cleaning fluid be?
1. pH 1
2. pH 3
3. pH 7
4. pH 11
5. pH 13
Which word means 'it will dissolve in a liquid'?
1. solute
2. solvent
3. solution
4. soluble
Which of these elements is a pale yellow gas?
1. fluorine (F)
2. chlorine (Cl)
3. bromine (Br)
4. iodine (I)
5. astatine (At)
Which of these elements is a green gas?
1. fluorine (F)
2. chlorine (Cl)
3. bromine (Br)
4. iodine (I)
5. astatine (At)
Which of these elements is a dark reddish brown liquid giving off a orange-brown vapour
1. fluorine (F)
2. chlorine (Cl)
3. bromine (Br)
4. iodine (I)
5. astatine (At)
Which of these elements is a dark solid giving a purple vapour on heating?
1. fluorine (F)
2. chlorine (Cl)
3. bromine (Br)
4. iodine (I)
5. astatine (At)
Which of these elements is a dark radioactive solid?
1. fluorine (F)
2. chlorine (Cl)
3. bromine (Br)
4. iodine (I)
5. astatine (At)
Which is the strongest alkali?
1. bleach
2. toothpaste
3. vinegar
4. wine
Which is the weakest alkali?
1. bleach
2. toothpaste
3. vinegar
4. wine
Which is the strongest acid?
1. bleach
2. toothpaste
3. vinegar
4. wine
Which is the weakest alkali?
1. bleach
2. calamine lotion
3. vinegar
4. wine
Which substance is added to soil to reduce the acidity and increase pH
1. sodium hydroxide
2. calcium oxide
3. NPK fertiliser
4. charcoal
Which of the following 'fizzes' when acid added to it?
1. cooking salt
2. potato crisps
3. bicarbonate of soda
4. household ammonia
Which gas, formed in fossil fuel combustion, is acidic and irritating to the lungs and eyes?
1. nitrogen dioxide (NO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. methane (CH₄)
Which gas is produced by photosynthesis?
1. methane (CH₄)
2. oxygen (O₂)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. hydrogen (H₂)
Which gas is relights a glowing splint?
1. nitrogen dioxide (NO₂)
2. oxygen (O₂)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. hydrogen (H₂)
Which gas is formed when acids react with carbonates?
1. nitrogen dioxide (NO₂)
2. oxygen (O₂)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. hydrogen (H₂)
Which gas is the main product formed on the complete combustion of a hydrocarbon fuel?
1. nitrogen dioxide (NO₂)
2. oxygen (O₂)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. sulfur dioxide (SO₂)
Which gas is formed with incomplete combustion of a hydrocarbon fuel?
1. nitrogen dioxide (NO₂)
2. oxygen (O₂)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. hydrogen (H₂)
Which gas is highly toxic and combines with haemoglobin in red blood cells?
1. nitrogen dioxide (NO₂)
2. oxygen (O₂)
3. carbon dioxide (CO₂)
4. carbon monoxide (CO)
5. methane (CH₄)
Which gas is most likely formed by the reaction between dilute acids and metals?
1. sulfur dioxide (SO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. hydrogen (H₂)
5. carbon monoxide (CO)
Which gas gives a squeaky pop with a lit splint?
1. nitrogen dioxide (NO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. hydrogen (H₂)
5. carbon monoxide (CO)
Which gas is used in the Haber synthesis of ammonia to make fertilisers?
1. nitrogen dioxide (NO₂)
2. sulfur dioxide (SO₂)
3. carbon dioxide (CO₂)
4. hydrogen (H₂)
5. carbon monoxide (CO)
Which gas is used in the Haber synthesis of ammonia to make fertilisers?
1. nitrogen dioxide (NO₂)
2. sulfur dioxide (SO₂)
3. carbon dioxide (CO₂)
4. nitrogen (N₂)
5. carbon monoxide (CO)
Which is the only alkaline gas listed?
1. nitrogen dioxide (NO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. methane (CH₄)
5. carbon monoxide (CO)
Which is an alkaline gas, soluble in water, and neutralised by acids to form salts?
1. nitrogen dioxide (NO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. nitrogen (N₂)
5. methane (CH₄)
Which is the only gas to turn red litmus paper blue?
1. methane (CH₄)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. nitrogen (N₂)
5. sulfur dioxide (SO₂)
Which gas is the main combustible component in liquified natural gas?
1. hexane (C₆H₁₄)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. methane (CH₄)
5. carbon monoxide (CO)
Which gas is most likely to be formed by the anaerobic decomposition of organic waste?
1. sulfur dioxide (SO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. methane (CH₄)
5. carbon monoxide (CO)
Which gas is the strongest infrared absorbing 'greenhouse' gas?
1. carbon monoxide (CO)
2. hydrogen (H₂)
3. carbon dioxide (CO₂)
4. methane (CH₄)
5. carbon monoxide (CO)
Which strongly acidic polluting gas is formed in the combustion of fossil fuels?
1. sulfur dioxide (SO₂)
2. ammonia (NH₃)
3. carbon dioxide (CO₂)
4. methane (CH₄)
5. carbon monoxide (CO)
What in general is formed when a dilute acid reacts with a metal?
1. salt + hydrogen
2. salt + water
3. salt + water + carbon dioxide
4. salt + carbon dioxide
What in general is formed when a dilute acid reacts with an oxide?
1. salt + hydrogen
2. salt + water
3. salt + water + carbon dioxide
4. salt + carbon dioxide
What in general is formed when a dilute acid reacts with a carbonate?
1. salt + hydrogen
2. salt + water
3. salt + water + carbon dioxide
4. salt + carbon dioxide
Which of the following describes a test for carbon dioxide?
1. The gas is bubbled into limewater.
2. A glowing wooden splint is placed in the gas.
3. A lit wooden splint is placed in the gas.
4. Damp red litmus is placed in the gas
Which of the following describes a test for oxygen?
1. The gas is bubbled into limewater.
2. A glowing wooden splint is placed in the gas.
3. A lit wooden splint is placed in the gas.
4. Damp red litmus is placed in the gas
Which of the following describes a test for hydrogen?
1. The gas is bubbled into limewater.
2. A glowing wooden splint is placed in the gas.
3. A lit wooden splint is placed in the gas.
4. Damp red litmus is placed in the gas
Which of the following describes a test for ammonia?
1. The gas is bubbled into limewater.
2. A glowing wooden splint is placed in the gas.
3. A lit wooden splint is placed in the gas.
4. Damp red litmus is placed in the gas
Which word describes the process of a solid directly changing to a gas/vapour on heating?
1. melting
2. boiling
3. evaporation
4. sublimation
This particle model picture represents a?
1. pure gas
2. liquid
3. mixture of gases
4. partly melted solid
This particle model picture represents a?
1. liquid mixture
2. pure liquid
3. solution
4. partly melted solid
This particle model picture represents a?
1. pure gas
2. liquid mixture or solution
3. solid
4. partly melted solid
This particle model picture represents a ?
1. pure gas
2. pure liquid
3. solid mixture or alloy
4. partly melted solid
This particle model picture represents a?
1. a liquid mixture
2. a partly condensed gas
3. a solid mixture
4. partly melted solid mixture
This particle model picture represents a ?
1. pure liquid
2. concentrated solution
3. solid mixture
4. pure solid
Which of these is an element?
1. Cu
2. CO
3. MgO
4. FeS
Which of these is a compound?
1. Cu
2. CO
3. Co
4. Sc
Which of these is an element?
1. SrS
2. BeO
3. No
4. MgS
Which of these is a compound?
1. Cs
2. Sc
3. Co
4. CO
This particle model represents a?
1. mixture of two compound molecules
2. molecules of a pure element
3. a mixture of molecules of two elements
4. a mixture of molecules of two elements and molecules of a compound
This particle model represents a?
1. mixture of two compound molecules
2. molecules of a pure element
3. a mixture of molecules of two elements
4. a mixture of molecules of two elements and molecules of a compound
This particle model represents a?
1. mixture of two compound molecules
2. molecules of a pure element
3. a mixture of molecules of two elements
4. a mixture of molecules of two elements and molecules of a compound
This particle model represents a?
1. mixture of two compound molecules
2. molecules of a pure element
3. a mixture of molecules of two elements
4. a mixture of molecules of two elements and molecules of a compound
When copper is heated in a bunsen flame it forms a black solid called?
1. copper oxide
2. copper hydroxide
3. copper carbide
4. copper nitride
The formula for sulfuric acid is H₂SO₄. What is the ratio of H : S : O atoms in the molecule?
1. 1 : 2 : 4
2. 2 : 1 : 4
3. 2 : 4 : 4
4. 2 : 2 : 4
The formula for calcium carbonate is CaCO₃. What is the ratio of Ca : C : O atoms in the formula?
1. 1 : 3 : 3
2. 1 : 1 : 3
3. 3 : 3 : 1
4. 3 : 1 : 1
The formula of ammonium sulfate is (NH₄)₂SO₄. What is the ratio of N : H : S : O atoms in the molecule?
1. 1 : 4 : 2 : 4
2. 2 : 4 : 2 : 8
3. 2 : 8 : 1 : 4
4. 1 : 8 : 1 : 8
The formula of calcium hydroxide is Ca(OH)₂. What is the ratio of Ca : O : H atoms in the formula?
1. 2 : 2 : 2
2. 2 : 2 : 1
3. 2 : 1 : 2
4. 1 : 2 : 2
At room temperature which of the following elements is a dull yellow solid?
1. sulfur (S)
2. gold (Au)
3. phosphorus (P)
4. boron (B)
At room temperature which of the following element is a silvery liquid?
1. caesium (Cs)
2. mercury (Hg)
3. selenium (Se)
4. boron (B)
At room temperature which of the following element is dark reddish-brown liquid?
1. phosphorus (P)
2. mercury (Hg)
3. bromine (Br)
4. boron (B)
At room temperature which of the following element is a silvery solid?
1. boron (B)
2. mercury (Hg)
3. gold (Au)
4. scandium (Sc)
Which is generally NOT true about comparing the properties of metallic and non-metallic elements?
1. Metals usually have lowish melting and boiling points and are brittle solids.
2. Metals are usually good thermal and electrical conductors with relatively high density.
3. Non-metals usually have low melting and boiling points and are poor thermal and electrical conductors.
4. Non-metals are usually physically weak e.g. if solid - brittle, dull coloured or soft, with lowish densities.
Which is generally NOT true about comparing the properties of metallic and non-metallic elements?
1. Metals usually have high melting and boiling points and strong shiny solids.
2. Metals are usually poor thermal and electrical conductors with relatively low density.
3. Non-metals usually have low melting and boiling points and are poor thermal and electrical conductors.
4. Non-metals are usually physically weak e.g. if solid - brittle, dull coloured or soft, with lowish densities.
Which is generally NOT true about comparing the properties of metallic and non-metallic elements?
1. Metals usually have high melting and boiling points and strong shiny solids.
2. Metals are usually good thermal and electrical conductors with relatively high density.
3. Non-metals usually have high melting and boiling points and are good thermal and electrical conductors.
4. Non-metals are usually physically weak e.g. if solid - brittle, dull coloured or soft, with lowish densities.
Which is generally NOT true about comparing the properties of metallic and non-metallic elements?
1. Metals usually have high melting and boiling points and strong shiny solids.
2. Metals are usually good thermal and electrical conductors with relatively high density.
3. Non-metals usually have low melting and boiling points and are poor thermal and electrical conductors.
4. Non-metals are usually physically strong with high densities.
Which word matches the phrase "the smallest possible particle of ordinary matter that makes up all materials"?
1. atom
2. element
3. compound
4. mixture
Which word matches the phrase "a particular type of atom which cannot be split into simpler substances"?
1. molecule
2. element
3. compound
4. mixture
Which word matches the phrase "two or more different types of atom chemically combined together"?
1. atom
2. element
3. compound
4. mixture
Which word matches the phrase "two or more substances that are not chemically combined together"?
1. atom
2. element
3. compound
4. mixture
Which method of separation is best to use for separating petrol from crude oil
1. distillation
2. evaporation
3. filtration
4. chromatography
Which method of separation is best to use for obtaining salt from seawater?
1. distillation
2. evaporation
3. filtration
4. chromatography
Which method of separation is best to use for removing silt from muddy water?
1. distillation
2. evaporation
3. filtration
4. chromatography
Which method of separation is best to use for investigating the composition of food dyes in sweet colours
1. distillation
2. evaporation
3. filtration
4. chromatography
Which sequence most closely describes process E?
1. burial, melting, cooling
2. may involve burial first, heat and/or pressure, recrystallisation without melting
3. weathering, erosion, transportation, deposition, burial, pressure, cementation
4. weathering, erosion, burial, melting, cooling
Which sequence most closely describes process H?
1. burial, melting, cooling
2. may involve burial first, heat and/or pressure, recrystallisation without melting
3. weathering, erosion, transportation, deposition, burial, pressure, cementation
4. weathering, erosion, burial, melting, cooling
Which sequence most closely describes process K?
1. burial, melting, cooling
2. may involve burial first, heat and/or pressure, recrystallisation without melting
3. weathering, erosion, transportation, deposition, burial, pressure, cementation
4. burial, pressure, cementation, recrystallisation
The preparation of copper sulfate from copper oxide and sulfuric acid. Which word applies to stages 1 and 2?
1. dissolving
2. filtration
3. evaporation
4. crystallisation
The preparation of copper sulfate from copper oxide and sulfuric acid. Which word applies to stage 3?
1. dissolving
2. filtration
3. evaporation
4. crystallisation
The preparation of copper sulfate from copper oxide and sulfuric acid. Which word applies to go from stages 3 to stage 4?
1. dissolving
2. filtration
3. evaporation
4. crystallisation
The preparation of copper sulfate from copper oxide and sulfuric acid. Which word applies to stage 4?
1. dissolving
2. filtration
3. evaporation
4. crystallisation
Which element is a non-metal, but in one form is quite a good electrical conductor?
1. carbon
2. lithium
3. bismuth
4. sulfur
Which element is used in batteries for electric cars?
1. carbon
2. lithium
3. bismuth
4. sulfur
Which element is used to protect steel cans from corrosion?
1. carbon
2. lithium
3. tin
4. sulfur
Which element is usually found not chemically combined with other elements?
1. aluminium
2. lithium
3. copper
4. gold
What must be always present for iron to rust?
1. oxygen only
2. water only
3. salty water
4. oxygen and water
Which of the following describes rust?
1. hydrated iron carbonate
2. hydrated iron sulfate
3. hydrated iron oxide
4. hydrated iron nitrate
Which metal reacts the most rapidly with water
1. potassium
2. calcium
3. magnesium
4. copper
Which metal reacts slowly with water to create a few bubbles on the surface?
1. sodium
2. magnesium
3. zinc
4. copper
Which metal shows little reaction with cold water
1. sodium
2. calcium
3. copper
4. potassium
Which metal reacts the most rapidly with acids?
1. zinc
2. iron
3. copper
4. magnesium
Which is TRUE about lithium, sodium and potassium, known as the Alkali Metals?
1. they have unusually low densities
2. they have unusually high melting points
3. they are typical hard metals
4. they are poor conductors of heat
Which is TRUE about lithium, sodium and potassium, known as the Alkali Metals?
1. they have unusually high densities
2. they have unusually low melting points
3. they are typical hard metals
4. they are poor conductors of electricity
Which is TRUE about lithium, sodium and potassium, known as the Alkali Metals?
1. they have unusually high densities
2. they have unusually high boiling points
3. they are unusually soft metals
4. they are poor conductors of heat
Which is TRUE about lithium, sodium and potassium, known as the Alkali Metals?
1. they have unusually high densities
2. they have unusually high boiling points
3. they are typical hard metals
4. they are good conductors of heat
Which is TRUE about lithium, sodium and potassium, known as the Alkali Metals?
1. when pure they are silver solids
2. they have untypically low boiling points
3. they are untypical hard metals
4. they are poor conductors of electricity because they have no mobile electrons
Which is TRUE about lithium, sodium and potassium, known as the Alkali Metals?
1. when pure they are colourless solids
2. they have untypically low boiling points
3. they are kept under oil because of their reactivity towards water or oxygen
4. they are poor conductors of electricity because they have no mobile electrons
What is formed when sodium is burned in air?
1. a low melting white carbonate
2. a low melting black carbonate
3. a white high melting oxide
4. a black high melting oxide
What is formed when copper is strongly heated in air?
1. a low melting white carbonate
2. a low melting black carbonate
3. a white high melting oxide
4. a black high melting oxide
Which is TRUE about the reaction of sodium and water containing universal indicator?
1. the products are sodium hydroxide and hydrogen
2. the reaction is fast and endothermic
3. the indicator turns from neutral green (pH 7) to strongly acid red (pH 1)
4. the gas formed causes a glowing splint to re-ignite
Which is TRUE about the reaction of potassium and water containing universal indicator?
1. the products are potassium oxide and hydrogen
2. the reaction is fast and exothermic
3. the indicator turns from acid red (pH 3) to neutral green (pH 7)
4. the metal sinks but carries on reacting
Which is TRUE about the reaction of lithium and water containing universal indicator?
1. the products are lithium oxide and hydrogen
2. the reaction is slow and endothermic
3. the indicator turns from neutral green (pH 7) to strongly alkaline purple (pH 14)
4. the metal sinks but carries on reacting
Which is TRUE about the reaction of sodium and water containing universal indicator?
1. the products are sodium oxide and hydrogen
2. the reaction is fast and endothermic
3. the indicator turns from neutral green (pH 7) to weakly alkaline dark green (pH 8)
4. the gas formed gives a pop with a lit splint
Which metal is less reactive than copper towards water or acids?
1. gold (Au)
2. sodium (Na)
3. iron (Fe)
4. aluminium (Al)
Which metal is more reactive than magnesium with water or acids?
1. gold (Au)
2. sodium (Na)
3. iron (Fe)
4. aluminium (Al)
Which is the least reactive metal with water or acids?
1. zinc (Zn)
2. sodium (Na)
3. iron (Fe)
4. aluminium (Al)
Which metal corrodes to give a protective oxide layer?
1. copper (Cu)
2. sodium (Na)
3. iron (Fe)
4. aluminium (Al)
Which of these reactions is possible?
1. Zn + CuO ==> ZnO + Cu
2. Pb + ZnCl₂ ==> PbCl₂ + Zn
3. Cu + FeSO₄ ==> CuSO₄ + Fe
4. Au + 2HCl ==> AuCl₂ + H₂
Which of these reactions is possible?
1. PbO + Cu ==> CuO + Pb
2. Zn + PbCl₂ ==> ZnCl₂ + Pb
3. Cu + FeSO₄ ==> CuSO₄ + Fe
4. Pt + 2HCl ==> PtCl₂ + H₂
Which of these reactions is possible?
1. SnO + Cu ==> CuO + Sn
2. Pb + SnCl₂ ==> PbCl₂ + Sn
3. Fe + CuSO₄ ==> FeSO₄ + Cu
4. Cu + H₂SO₄ ==> CuSO₄ + H₂
Which of these reactions is possible?
1. PbO + Pt ==> PtO + Pb
2. Pb + SnCl₂ ==> PbCl₂ + Sn
3. Pt + CuSO₄ ==> PtSO₄ + Cu
4. Sn + H₂SO₄ ==> SnSO₄ + H₂
Which rock is likely to be eroded the fastest by polluting acid rain?
1. limestone
2. marble
3. granite
4. sandstone
Which rock is likely to be eroded the slowest by polluting acid rain?
1. limestone
2. marble
3. granite
4. sandstone
Which rock is likely to be eroded the slowest by polluting acid rain?
1. limestone
2. marble
3. slate
4. sandstone
Which rock is likely to be eroded the fastest by polluting acid rain?
1. slate
2. marble
3. granite
4. basalt
A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals are most likely to produce the largest voltage?
1. magnesium and silver
2. zinc and iron
3. magnesium and zinc
4. zinc and tin
A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals are most likely to produce the smallest voltage? [9h-6]
1. magnesium and silver
2. zinc and iron
3. magnesium and zinc
4. zinc and tin
A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals are most likely to produce the biggest voltage?
1. zinc and copper
2. zinc and tin
3. magnesium and copper
4. tin and lead
A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals are most likely to produce the smallest voltage?
1. zinc and copper
2. zinc and tin
3. magnesium and copper
4. tin and lead
Which substance is found in petrol?
1. C
2. C₈H₁₈
3. CO
4. H₂
Which substance is most likely to form in the incomplete (inefficient) burning of a fuel?
1. CO₂
2. C₈H₁₈
3. CO
4. H₂
Which substance could be a fuel of the future?
1. C
2. C₈H₁₈
3. CO
4. H₂
Which substance is a product of the complete combustion of a fuel?
1. C
2. C₈H₁₈
3. CO
4. H₂O
Which chemical change corresponds to a 'neutralisation reaction'?
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulfate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Which of these chemical changes corresponds to a 'fuel combustion' reaction?
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulfate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Which of these chemical changes corresponds to a 'displacement reaction'?
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulfate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Which of these chemical changes corresponds to a 'decomposition reaction'?
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulfate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
In a measured (quantitative) experiment, burning 2.4g of magnesium produced 4.0g of white magnesium oxide powder (MgO). What mass of oxygen combined with the magnesium?
1. 1.6 g
2. 2.4 g
3. 3.2 g
4. 6.4 g
In a measured (quantitative) experiment, burning 2.4g of magnesium produced 4.0g of white magnesium oxide powder (MgO). What mass of magnesium oxide might you expect if 3.6g of magnesium was burned?
1. 2.4 g
2. 6.0 g
3. 7.2 g
4. 6.4 g
CaCO₃ ==> CaO + CO₂
If 100g of calcium carbonate is decomposed to give a residue of 56g of calcium oxide, what is the mass of the carbon dioxide formed
1. 0 g
2. 56 g
3. 44 g
4. 54 g
What is the formula of ammonia?
1. NH₃
2. NH₂
3. NH₄
4. NH
What is the formula of methane?
1. C₂H₆
2. CH
3. CH₄
4. CH₃
What is the formula of sulfuric acid?
1. H₂SO₃
2. H₂SO₄
3. HSO₄
4. HSO₃
What is the formula of iron(III) oxide?
1. FeO₃
2. FeO
3. Fe₃O
4. Fe₂O₃
What is the formula of sodium hydroxide?
1. SOH
2. NaOH
3. S(OH)₂
4. Na(OH)₂
What is the formula of calcium carbonate?
1. CaCO₃
2. CaC₃
3. CaCO₂
4. Ca₂2CO₂
What is the formula of copper(II) sulfate?
1. CuSO₃
2. Cu(SO₄)₂
3. CuSO₄
4. CuSO₂
What is the formula of potassium sulfate?
1. K₂S
2. KSO₃
3. K₂SO₄
4. KSO₃
What is the name of the compound H₂SO₄?
1. sulfurous acid
2. sulfuric acid
3. hydrogen sulfate
4. hydrogen sulfite
Which is a correct name of the compound BaCl₂?
1. barium dichloride
2. barium carbide
3. barium chloride
4. boron dichloride
Which is a correct name of the compound Na₂CO₃?
1. sodium carbon trioxide
2. soda carbonate
3. sodium carbonate
4. disodium carbonate
Which is a correct name of the compound of formula KBr?
1. potassium bromide
2. krypton bromide
3. potassium bromine
4. krypton bromine
Which is a correct name of the compound of formula CuCl₂?
1. carbon dichloride
2. copper(II) carbide
3. copper(II) chloride
4. carbon dichloride
Which is a correct name of the compound KNO₃?
1. potassium carbonate
2. potassium nitride
3. potassium nitrite
4. potassium nitrate
In the electrolysis of moderately concentrated sodium chloride solution (brine) using carbon/platinum electrodes, the principal product formed at the positive anode is?
1. chlorine
2. hydrogen
3. oxygen
4. sodium
In the electrolysis of moderately concentrated sodium chloride solution (brine) using carbon/platinum electrodes, the principal product formed at the negative cathode is?
1. chlorine
2. hydrogen
3. oxygen
4. sodium
When copper(II) sulfate solution undergoes electrolysis using inert carbon or platinum electrodes the product at the positive anode is?
1. sulfur
2. hydrogen
3. oxygen
4. copper
When copper(II) sulfate solution undergoes electrolysis using inert carbon or platinum electrodes the product at the negative cathode is?
1. sulfur
2. hydrogen
3. oxygen
4. copper
In the electrolysis of water acidified with sulfuric acid, using inert carbon or platinum electrodes, what product is formed on the surface of the negative cathode?
1. sulfur
2. sulfur dioxide
3. hydrogen
4. oxygen
In the electrolysis of water acidified with sulfuric acid, using inert carbon or platinum electrodes, what product is formed on the surface of the positive anode?
1. sulfur
2. sulfur dioxide
3. hydrogen
4. oxygen
Which of the following reactions is likely to be the most exothermic?
1. CH_4(g) + 2O_2(g) ==> CO_2(g) + 2H₂O_(l)
2. NaOH_(aq) + HCl_(aq) ==> NaCl_(aq) + H₂O_(l)
3. CaCO_3(s) ==> CaO_(s) + CO_2(g)
4. C₆H₁₂O_6(aq) ==> 2C₂H₅OH_(aq) + 2CO_2(g)
Which of the following reactions is likely to be endothermic?
1. CH_4(g) + 2O_2(g) ==> CO_2(g) + 2H₂O_(l)
2. NaOH_(aq) + HCl_(aq) ==> NaCl_(aq) + H₂O_(l)
3. CaCO_3(s) ==> CaO_(s) + CO_2(g)
4. C₆H₁₂O_6(aq) ==> 2C₂H₅OH_(aq) + 2CO_2(g)
Which of the following reactions is a neutralisation?
1. CH_4(g) + 2O_2(g) ==> CO_2(g) + 2H₂O_(l)
2. NaOH_(aq) + HCl_(aq) ==> NaCl_(aq) + H₂O_(l)
3. CaCO_3(s) ==> CaO_(s) + CO_2(g)
4. C₆H₁₂O_6(aq) ==> 2C₂H₅OH_(aq) + 2CO_2(g)
Which of the following reactions produces a biofuel?
1. CH_4(g) + 2O_2(g) ==> CO_2(g) + 2H₂O_(l)
2. NaOH_(aq) + HCl_(aq) ==> NaCl_(aq) + H₂O_(l)
3. C₆H_14(g) ==> C₂H_4(g) + C₄H_10(g)
4. C₆H₁₂O_6(aq) ==> 2C₂H₅OH_(aq) + 2CO_2(g)
Which of the following reactions is a displacement?
1. magnesium + copper sulphate ==> copper + magnesium sulphate
2. hexane ==> ethene + butane
3. nitrogen + hydrogen ==> ammonia
4. methane + oxygen ==> carbon dioxide + water
Which of the following reactions is a 'cracking' reaction?
1. magnesium + copper sulphate ==> copper + magnesium sulphate
2. hexane ==> ethene + butane
3. nitrogen + hydrogen ==> ammonia
4. sodium sulphate + barium chloride ==> sodium chloride + barium sulphate
Which of the following reactions represents the Haber synthesis?
1. magnesium + copper sulphate ==> copper + magnesium sulphate
2. hexane ==> ethene + butane
3. nitrogen + hydrogen ==> ammonia
4. sodium sulphate + barium chloride ==> sodium chloride + barium sulphate
For the reaction: copper(II) oxide + hydrogen ==> copper + water
CuO + H₂ ===> Cu + H₂O... which of the following is 'reduced'?
1. copper(II) oxide
2. hydrogen
3. copper
4. water
For the reaction: copper(II) oxide + hydrogen ==> copper + water
CuO + H₂ ===> Cu + H₂O... which of the following is 'oxidised'?
1. copper(II) oxide
2. hydrogen
3. copper
4. water
For the reaction: copper(II) oxide + hydrogen ==> copper + water
CuO + H₂ ===> Cu + H₂O... which of the following is the 'reducing agent'?
1. copper(II) oxide
2. hydrogen
3. copper
4. water
For the reaction: copper(II) oxide + hydrogen ==> copper + water
CuO + H₂ ===> Cu + H₂O
... which of the following is the 'oxidising agent'?
1. copper(II) oxide
2. hydrogen
3. copper
4. water
For reactions to occur, the particles of the reactants must collide in a 'fruitful' collision. The fewer the collisions that take place, the slower the rate of a reaction. Which DECREASES the frequency of collisions between reactant particles?
1. For reactions involving gaseous reactants, decrease the pressure of the gases
2. For reactions involving solutions, raise the concentration of the solution
3. If a solid is reacting with a liquid, break the solid into smaller pieces
4. Raise the temperature of the reaction mixture
For reactions to occur, the particles of the reactants must collide in a fruitful collision. The fewer the collisions that take place, the slower the rate of reaction. Which DECREASES the frequency of collisions between reactant particles?
1. For reactions involving gaseous reactants, increase the pressure of the gases
2. For reactions involving solutions, decrease the concentration of the solution
3. If a solid is reacting with a liquid, break the solid into smaller pieces
4. Raise the temperature of the reaction mixture
For reactions to occur, the particles of the reactants must collide in a fruitful collision. The fewer the collisions that take place, the slower the rate of reaction. Which INCREASES the frequency of collisions between reactant particles?
1. For reactions involving gaseous reactants, decrease the pressure of the gases
2. For reactions involving solutions, decrease the concentration of the solution
3. If a solid is reacting with a liquid, break the solid into smaller pieces
4. Lower the temperature of the reaction mixture
For reactions to occur, the particles of the reactants must collide in a fruitful collision. The fewer the collisions that take place, the slower the rate of reaction. Which INCREASES the frequency of collisions between reactant particles?
1. For reactions involving gaseous reactants, decrease the pressure of the gases
2. For reactions involving solutions, decrease the concentration of the solution
3. If a solid is reacting with a liquid, use large pieces of the solid
4. Increase the temperature of the reaction mixture
Calcium carbonate in the form of limestone dissolves in hydrochloric acid and giving off carbon dioxide gas. Which conditions would produce the fastest reaction for the same quantity of limestone?
1. temperature of 40°C and 10cm³ of dilute acid
2. temperature of 20°C and 10cm³ of dilute acid
3. temperature of 40°C and 5cm³ of dilute acid and 5cm³ of water
4. temperature of 20°C and 5cm³ of dilute acid and 5cm³ of water
Calcium carbonate in the form of limestone dissolves in hydrochloric acid and giving off carbon dioxide gas. Which conditions would produce the slowest reaction for the same quantity of limestone?
1. temperature of 40°C and 10cm³ of dilute acid
2. temperature of 20°C and 10cm³ of dilute acid
3. temperature of 40°C and 5cm³ of dilute acid and 5cm³ of water
4. temperature of 20°C and 5cm³ of dilute acid and 5cm³ of water
Which of these metals can be used in the 'sacrificial corrosion' method for protecting steel structures from rusting?
1. copper
2. lead
3. magnesium
4. gold
Which of these metals can be used in the 'sacrificial corrosion' method for protecting steel structures from rusting?
1. copper
2. lead
3. zinc
4. silver
Which of these metals is coated on steel food cans to stop them corroding?
1. copper
2. lead
3. magnesium
4. tin
The displacement reaction of metal M with iron(II) sulfate can be written as:
M + FeSO₄ ===> MSO₄ + Fe
Which of the following metals is most likely to displace iron?
1. zinc
2. copper
3. silver
4. tin
The displacement reaction of metal M with iron(II) sulfate can be written as:
M + FeSO₄ ===> MSO₄ + Fe
Which of the following metals is least likely to displace iron?
1. zinc
2. copper
3. magnesium
4. calcium
Which statement is NOT true about the modern PERIODIC TABLE?
1. the elements are laid out in order of atomic number
2. elements in the same group have the same number of electrons in the outer shell
3. elements down a group use an increasing number of electron shells
4. from left to right, elements in the same period use an increasing number of electron shells
The atomic number of an element is?
1. the number of neutrons in the nucleus
2. the sum of the protons and neutrons in the nucleus
3. the number of protons in the nucleus
4. the number of electrons in the outer shell
The mass number of an element is?
1. the number of neutrons in the nucleus
2. the sum of the protons and neutrons in the nucleus
3. the number of protons in the nucleus
4. the number of electrons in the outer shell
The group number of an element can be?
1. the number of neutrons in the nucleus
2. the total number of electrons in the atom
3. the number of protons in the nucleus
4. the number of electrons in the outer shell
In which group or series will you find an element most likely to rapidly oxidise in air?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find an element that is a low melting point solid and a good conductor of heat and electricity?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find an element that rapidly reacts with water to give an alkaline solution?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 3
In which group or series will you find elements that have relatively low melting/boiling points and give a coloured gas when vapourised?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find elements that are relatively reactive non-metals?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find elements that readily formed ionic compounds with most metals?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find elements that are very unreactive?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find elements that have a full outer shell of electrons?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series are you most likely to find elements and their compounds that act as catalysts?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find compounds of these elements with typically varied formulae and colours?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find the element potassium?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find the element iodine?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find the element krypton?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
In which group or series will you find the element nickel?
1. Group 1
2. Group 7
3. Group 0 (8)
4. Transition series
5. Group 2
Which atomic electron arrangement could be that of a very reactive metal?
1. 2.8.8.1
2. 2.8.8.2
3. 2.8.18.7
4. 2.8.18.8
Which atomic electron arrangement could be that of a very reactive non-metal?
1. 2.8.8.1
2. 2.8.8.2
3. 2.8.18.7
4. 2.8.18.8
Which atomic electron arrangement could be that of a very unreactive non-metal?
1. 2.8.8.1
2. 2.8.8.2
3. 2.8.18.7
4. 2.8.18.8
Which atomic electron arrangement could be that of an element in period 2 of the periodic table?
1. 2.3
2. 2.8.2
3. 2.8.8.6
4. 2.8.8.4
Which atomic electron arrangement could be that of an element in period 3 of the periodic table?
1. 2.8.8.3
2. 2.8.2
3. 2.3
4. 2.8.8.4
Which atomic electron arrangement could be that of an element in period 4 of the periodic table?
1. 2.2
2. 2.4
3. 2.8.4
4. 2.8.8.2
Which of these reactions is endothermic?
1. methane + oxygen ==> carbon dioxide + water
2. calcium carbonate ==> calcium oxide + carbon dioxide
3. hydrochloric acid + sodium hydroxide ==> sodium chloride + water
4. sodium + water ==> sodium hydroxide + hydrogen
Which of these reactions is NOT exothermic?
1. methane + oxygen ==> carbon dioxide + water
2. calcium carbonate ==> calcium oxide + carbon dioxide
3. hydrochloric acid + sodium hydroxide ==> sodium chloride + water
4. sodium + water ==> sodium hydroxide + hydrogen
Which of these numbers represents the overall energy change for the reaction?
1. 1
2. 2
3. 3
4. 4
Which of these numbers represents the activation energy for the reaction?
1. 1
2. 2
3. 3
4. 4
Which of these chemical equations is NOT balanced correctly?
1. Fe₃O₄ + 3CO ==> 3Fe + 3CO₂
2. 2Fe₂O₃ + 3C ==> 4Fe + 3CO₂
3. 2Al + 6HCl ==> 2AlCl₃ + 3H₂
4. C₃H₈ + 5O₂ ==> 3CO₂ + 4H₂O
Which of these chemical equations is NOT balanced correctly?
1. Fe₃O₄ + 4CO ==> 3Fe + 4CO₂
2. 2Fe₂O₃ + 2C ==> 4Fe + 2CO₂
3. 2Al + 6HCl ==> 2AlCl₃ + 3H₂
4. C₃H₈ + 5O₂ ==> 3CO₂ + 4H₂O
Which of these chemical equations is NOT balanced correctly?
1. Fe₃O₄ + 4CO ==> 3Fe + 4CO₂
2. 2Fe₂O₃ + 3C ==> 4Fe + 3CO₂
3. 2Al + 3HCl ==> AlCl₃ + 3H₂
4. C₃H₈ + 5O₂ ==> 3CO₂ + 4H₂O
Which of these chemical equations is NOT balanced correctly?
1. Fe₃O₄ + 4CO ==> 3Fe + 4CO₂
2. 2Fe₂O₃ + 3C ==> 4Fe + 3CO₂
3. 2Al + 6HCl ==> 2AlCl₃ + 3H₂
4. C₃H₈ + 4O₂ ==> 3CO₂ + 4H₂O
Which of the following statements about Group 1 Alkali Metals is NOT true?
1. down the group reactivity towards water decreases
2. an ionic compound is formed when they combine with oxygen
3. they are soft silvery grey solids
4. they are good conductors of heat and electricity
5. they form a singly charged positive ion
Which of the following statements about Group 1 Alkali Metals is NOT true?
1. down the group reactivity towards water increases
2. a covalent compound is formed when they combine with oxygen
3. they are soft silvery grey solids
4. they are good conductors of heat and electricity
5. they form a singly charged positive ion
Which of the following statements about Group 1 Alkali Metals is NOT true?
1. down the group reactivity towards water increases
2. an ionic compound is formed when they combine with oxygen
3. they are hard silvery grey solids
4. they are good conductors of heat and electricity
5. they form a singly charged positive ion
Which of the following statements about Group 1 Alkali Metals is NOT true?
1. down the group reactivity towards water increases
2. an ionic compound is formed when they combine with oxygen
3. they are soft silvery grey solids
4. the atomic radius decreases down the group
5. they form a singly charged positive ion
Which of the following statements about Group 1 Alkali Metals is NOT true?
1. down the group reactivity towards water increases
2. an ionic compound is formed when they combine with oxygen
3. they are soft silvery grey solids
4. they are good conductors of heat and electricity
5. they form a singly charged negative ion
Which of the following statements about the Group 0 (8) Noble Gases is NOT true?
1. they have an incomplete outer shell of electrons
2. they are the least reactive group of elements
3. the atomic radius increases down the group
4. the melting/boiling points increase down the group
5. the reactivity towards fluorine increases down the group
Which of the following statements about the Group 0 (8) Noble Gases is NOT true?
1. they have a full outer shell of electrons
2. they cannot react with any other elements
3. the atomic radius increases down the group
4. the melting/boiling points increase down the group
5. the reactivity towards fluorine increases down the group
Which of the following statements about the Group 0 (8) Noble Gases is NOT true?
1. they have a full outer shell of electrons
2. they are the least reactive group of elements
3. the atomic radius decreases down the group
4. the melting/boiling points increase down the group
5. the reactivity towards fluorine increases down the group
Which of the following statements about the Group 0 (8) Noble Gases is NOT true?
1. they have a full outer shell of electrons
2. they are the least reactive group of elements
3. the atomic radius increases down the group
4. the melting/boiling points decrease down the group
5. the reactivity towards fluorine increases down the group
Which of the following statements about the Group 0 (8) Noble Gases is NOT true?
1. they have a full outer shell of electrons
2. they are the least reactive group of elements
3. the atomic radius increases down the group
4. the melting/boiling points increase down the group
5. the reactivity towards fluorine decreases down the group
Which of the following statements about the Group 7 Halogens is NOT true?
1. the reactivity increases down the group
2. the melting/boiling points increase down the group
3. they all have 7 electrons in the outer shell
4. they can form a singly charged negative ion
5. they form ionic compounds when combined with group 1 metals
Which of the following statements about the Group 7 Halogens is NOT true?
1. the reactivity decreases down the group
2. the melting/boiling points decrease down the group
3. they all have 7 electrons in the outer shell
4. they can form a singly charged negative ion
5. they form ionic compounds when combined with group 1 metals
Which of the following statements about the Group 7 Halogens is NOT true?
1. the reactivity decreases down the group
2. the melting/boiling points increase down the group
3. they all have 1 electron in the outer shell
4. they can form a singly charged negative ion
5. they form ionic compounds when combined with group 1 metals
Which of the following statements about the Group 7 Halogens is NOT true?
1. the reactivity decreases down the group
2. the melting/boiling points increase down the group
3. they all have 7 electrons in the outer shell
4. they can form a singly charged positive ion
5. they form ionic compounds when combined with group 1 metals
Which of the following statements about the Group 7 Halogens is NOT true?
1. the reactivity decreases down the group
2. the melting/boiling points increase down the group
3. they all have 7 electrons in the outer shell
4. they can form a singly charged negative ion
5. they form covalent compounds when combined with group 1 metals
Which of the following metals forms a blue sulfate salt and found in the alloy brass?
1. zinc
2. copper
3. cobalt
4. titanium
5. nickel
Which of the following metals has compounds that give a blue colour to glass and is magnetic?
1. zinc
2. copper
3. cobalt
4. titanium
5. nickel
Which of the following metals is used to make light strong alloys and forms a white oxide used as a pigment?
1. iron
2. copper
3. cobalt
4. titanium
5. nickel
Which of the following metals forms green coloured compounds and is magnetic?
1. zinc
2. copper
3. magnesium
4. titanium
5. nickel
Which of the following metals is least likely to form coloured compounds?
1. zinc
2. copper
3. cobalt
4. chromium
5. nickel

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