KS3 Science-Chemistry Quiz on "USING CHEMISTRY" (based on QCA 9H)

Hydrocarbon fuels burn to form carbon dioxide and water. Which is a correct description of a chemical test for carbon dioxide? [9h-1]
1. white milky precipitate with limewater
2. turns white copper sulphate powder blue
3. turns blue cobalt chloride paper pink
4. boils at 100^oC
Hydrocarbon fuels burn to form carbon dioxide and water. Which is a correct description of a chemical test for water? [9h-2]
1. white milky precipitate with limewater
2. turns white copper sulphate powder blue
3. turns universal indicator green
4. boils at 100^oC
Hydrocarbon fuels burn to form carbon dioxide and water. Which is a correct description of a chemical test for water? [9h-3]
1. white milky precipitate with limewater
2. turns universal indicator green
3. turns blue cobalt chloride paper pink
4. boils at 100^oC
Hydrocarbon fuels burn to form carbon dioxide and water. Which is a correct description of a physical test for water? [9h-4]
1. white milky precipitate with limewater
2. turns white copper sulphate powder blue
3. turns blue cobalt chloride paper pink
4. boils at 100^oC
A simple battery (cell) can be made by dipping two different strips of metal into a conducting salt solution of ions. Which two metals will produce the largest voltage? [9h-5]
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 will 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 will produce the biggest voltage? [9h-7]
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 will produce the smallest voltage? [9h-8]
1. zinc and copper
2. zinc and tin
3. magnesium and copper
4. tin and lead
A suitable material for a match head can be made from a mixture of carbon, sulphur and potassium chlorate. Which best explains how the match ignites on striking it? [9h-9]
1. friction generates heat to trigger the reaction
2. friction allows air to get to the carbon and sulphur
3. friction breaks down the potassium chlorate into smaller reactive particles
4. friction makes the carbon and sulphur combine exothermically
A suitable material for a match head can be made from a mixture of carbon, sulphur and potassium chlorate. Which best explains the role of the carbon? [9h-10]
1. acts as a catalyst to help burn the sulphur
2. burns with oxygen from the potassium chlorate
3. produces oxygen to burn the sulphur
4. absorbs poisonous gases formed in the combustion reaction
A suitable material for a match head can be made from a mixture of carbon, sulphur and potassium chlorate. Which best explains the role of the potassium chlorate? [9h-11]
1. acts a catalyst to trigger the reaction
2. burns exothermically with oxygen from the air
3. produces oxygen to burn the sulphur
4. absorbs poisonous gases formed in the combustion reaction
A suitable material for a match head can be made from a mixture of carbon, sulphur and potassium chlorate. Which best explains the role of the sulphur? [9h-12]
1. absorbs poisonous combustion gases
2. helps to burn the carbon
3. produces oxygen to burn the carbon
4. burns with oxygen from the potassium chlorate
Carbon dioxide is formed in the complete combustion of a fuel. Carbon monoxide can be formed in the incomplete combustion of a fuel. Which statement is TRUE about these two gases? [9h-13]
1. carbon monoxide will burn and carbon dioxide will not
2. both gases give a milky precipitate when bubbled into limewater
3. both gases are toxic to animals
4. carbon monoxide is an element and carbon dioxide is a compound
Carbon dioxide is formed in the complete combustion of a fuel. Carbon monoxide can be formed in the incomplete combustion of a fuel. Which statement is TRUE about these two gases? [9h-14]
1. neither compound will burn in air
2. only carbon dioxide gives a milky precipitate when bubbled into limewater
3. both gases are toxic to animals
4. carbon monoxide is an element and carbon dioxide is a compound
Carbon dioxide is formed in the complete combustion of a fuel. Carbon monoxide can be formed in the incomplete combustion of a fuel. Which statement is TRUE about these two gases? [9h-15]
1. neither compound will burn in air
2. both gases give a milky precipitate when bubbled into limewater
3. only carbon monoxide gas is toxic to animals
4. carbon monoxide is an element and carbon dioxide is a compound
Carbon dioxide is formed in the complete combustion of a fuel. Carbon monoxide can be formed in the incomplete combustion of a fuel. Which statement is TRUE about these two gases? [9h-16]
1. neither compound will burn in air
2. both gases give a milky precipitate when bubbled into limewater
3. both gases are toxic to animals
4. both gases are compounds
Hydrogen could well be a fuel for the future but there are advantages and disadvantages to its use. Which statement is TRUE about the potential use of hydrogen as a fuel? [9h-17]
1. on burning it produces no pollution effects
2. on burning it gives off a lot of wasted light energy
3. it is not as flammable or explosive as oil
4. it is easily delivered to homes in liquid form
Hydrogen could well be a fuel for the future but there are advantages and disadvantages to its use. Which statement is TRUE about the potential use of hydrogen as a fuel? [9h-18]
1. on burning it produces lots of greenhouse gases
2. on burning it gives off little wasted light energy
3. it is not as flammable or explosive as oil
4. it is easily delivered in liquid form
Hydrogen could well be a fuel for the future but there are advantages and disadvantages to its use. Which statement is TRUE about the potential use of hydrogen as a fuel? [9h-19]
1. on burning it produces lots of greenhouse gases
2. on burning it gives off lots of wasted light energy
3. it is explosive when mixed with air
4. it is easily delivered in liquid form
Hydrogen could well be a fuel for the future but there are advantages and disadvantages to its use. Which statement is TRUE about the potential use of hydrogen as a fuel? [9h-20]
1. on burning it produces lots of greenhouse gases
2. on burning it gives off lots of wasted light energy
3. it is not as flammable or explosive as oil
4. it has to be compressed before it can be distributed efficiently
Which word would you associate with the phrase 'a substance that releases energy on burning'? [9h-21]
1. fuel
2. exothermic
3. reactive
4. endothermic
Which word would you associate with the phrase 'reaction that gives out heat'? [9h-22]
1. fuel
2. exothermic
3. reactive
4. endothermic
Which word would you associate with the phrase 'easily changes chemically'? [9h-23]
1. fuel
2. exothermic
3. reactive
4. endothermic
Which word would you associate with the phrase 'reaction that absorbs heat'? [9h-24]
1. fuel
2. exothermic
3. reactive
4. endothermic
Which is formed in the complete combustion of a hydrocarbon fuel? [9h-25]
1. H₂O
2. C₈H₁₈
3. CO
4. O₂
Which substance is found in petrol? [9h-26]
1. C
2. C₈H₁₈
3. CO
4. H₂
Which substance is most likely to form in the incomplete (inefficient) burning of a fuel? [9h-27]
1. H₂O
2. C₈H₁₈
3. CO
4. CO₂
Which substance is needed to burn any fuel? [9h-28]
1. H₂O
2. C₈H₁₈
3. CO
4. O₂
Which substance could be a fuel of the future? [9h-29]
1. H₂
2. C₈H₁₈
3. CO
4. C
Which substance is a product of the complete combustion of a fuel? [9h-30]
1. C
2. CO₂
3. CO
4. O₂
Which substance is a colourless flammable liquid? [9h-31]
1. H₂O
2. C
3. C₈H₁₈
4. CO₂
Which substance is a hydrocarbon? [9h-32]
1. H₂
2. CO
3. C
4. C₈H₁₈
Which is likely to be the most exothermic reaction? (produces the biggest temperature rise) [9h-33]
1. magnesium + copper sulphate ==> magnesium sulphate + copper
2. tin + lead nitrate ==> tin nitrate + lead
3. copper + aluminium sulphate ==> copper sulphate + aluminium
4. aluminium + iron nitrate ==> aluminium nitrate + iron
Which of the following reactions is likely to be the least exothermic? (produces the smallest temperature rise) [9h-34]
1. magnesium + copper sulphate ==> magnesium sulphate + copper
2. tin + lead nitrate ==> tin nitrate + lead
3. aluminium + copper sulphate ==> aluminium sulphate + copper
4. aluminium + iron nitrate ==> aluminium nitrate + iron
Which of the following reactions is likely to be the most exothermic? (produces the largest temperature rise) [9h-35]
1. copper + magnesium sulphate ==> copper sulphate + magnesium
2. zinc + tin nitrate ==> zinc nitrate + lead
3. calcium + silver nitrate ==> calcium nitrate + silver
4. iron + tin sulphate ==> iron sulphate + tin
Which of the following reactions is likely to be the least exothermic? (produces the smallest temperature rise) [9h-36]
1. magnesium + zinc sulphate ==> magnesium sulphate + zinc
2. zinc + lead nitrate ==> zinc nitrate + lead
3. calcium + silver nitrate ==> calcium nitrate + silver
4. iron + tin sulphate ==> iron sulphate + tin
Which chemical change corresponds to a 'neutralisation reaction'? [9h-37]
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulphate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Which of these chemical changes corresponds to a 'fuel combustion' reaction? [9h-38]
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulphate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Which of these chemical changes corresponds to a 'displacement reaction'? [9h-39]
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulphate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Which of these chemical changes corresponds to a 'decomposition reaction'? [9h-40]
1. sodium hydroxide + hydrochloric acid ==> sodium chloride + water
2. methane + oxygen ==> carbon dioxide + water
3. zinc + copper sulphate ==> zinc sulphate + copper
4. calcium carbonate ==> calcium oxide + carbon dioxide
Experiments were done to decide which chemicals would be best to use for an emergency food cooking heater. The chemicals on mixing need to react exothermically to release heat. Chemicals can be tested in a simple calorimeter to measure the temperature rise. From the results for mixtures A to D, which would be the most efficient to use in such a device? [9h-41]
1. 10g mix, temperature rose from 23^o to 43^oC
2. 20g mix, temperature rose from 25^o to 35^oC
3. 30g mix, temperature rose from 30^o to 75^oC
4. 40g mix, temperature rose from 28^o to 68^oC
Experiments were done to decide which chemicals would be best to use for an emergency food cooking heater. The chemicals on mixing need to react exothermically to release heat. Chemicals can be tested in a simple calorimeter to measure the temperature rise. From the results for mixtures A to D, which would be the least efficient to use in such a device? [9h-42]
1. 10g mix, temperature rose from 23^o to 43^oC
2. 20g mix, temperature rose from 25^o to 35^oC
3. 30g mix, temperature rose from 30^o to 75^oC
4. 40g mix, temperature rose from 28^o to 68^oC
Experiments were done to decide which chemicals would be best to use for an emergency food cooking heater. The chemicals on mixing need to react exothermically to release heat. Chemicals can be tested in a simple calorimeter to measure the temperature rise. From the results for mixtures A to D, which would be the 2nd most efficient to use in such a device? [9h-43]
1. 10g mix, temperature rose from 23^o to 43^oC
2. 20g mix, temperature rose from 25^o to 35^oC
3. 30g mix, temperature rose from 30^o to 75^oC
4. 40g mix, temperature rose from 28^o to 68^oC
Experiments were done to decide which chemicals would be best to use for an emergency food cooking heater. The chemicals on mixing need to react exothermically to release heat. Chemicals can be tested in a simple calorimeter to measure the temperature rise. From the results for mixtures A to D, which would be the 3rd most efficient to use in such a device? [9h-44]
1. 10g mix, temperature rose from 23^o to 43^oC
2. 20g mix, temperature rose from 25^o to 35^oC
3. 30g mix, temperature rose from 30^o to 75^oC
4. 40g mix, temperature rose from 28^o to 68^oC
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? [9h-45]
1. 1.6g
2. 2.4g
3. 3.2g
4. 6.4g
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? [9h-46]
1. 2.4g
2. 6.0g
3. 7.2g
4. 6.4g
Calcium carbonate decomposes on strong heating to form solid calcium oxide and carbon dioxide gas.
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? [9h-47]
1. 0g
2. 56g
3. 44g
4. 54g
If 30g of salt is dissolved in 100g of water, what mass of salt solution is formed? [9h-48]
1. 70g
2. 100g
3. 30g
4. 130g
Hydrogen could well be a fuel for the future but there are advantages and disadvantages to its use. Which statement is TRUE about the potential use of hydrogen as a fuel? [9h-49]
1. on burning it produces only water
2. on burning it gives off a lot of wasted light energy
3. it is not as flammable or explosive as oil
4. it is easily delivered to homes in liquid form
Hydrogen could well be a fuel for the future but there are advantages and disadvantages to its use. Which statement is TRUE about the potential use of hydrogen as a fuel? [9h-50]
1. on burning it gives off a lot of wasted light energy
2. it is a dangerously explosive gas
3. it is not as flammable or explosive as oil
4. it is easily delivered to homes in liquid form
When a metal is heated or burned in air, the product weighs more than the metal. What is the reason for this observation? [9h-51]
1. the metal absorbs oxygen from the air
2. the metal absorbs water vapour from the air
3. the metal combines with oxygen in the air
4. the metal combines with nitrogen in the air
Propane gas (C₃H₈) can be used in gas cookers and burns in just the same way methane completely burns in a bunsen flame. Which is the correct right hand side of the equation to balance the left hand side given below? [9h-52]
C₃H₈ + 5O₂ ==> ? + ?
1. 3CO + 4H₂O
2. 3CO₂ + 2H₂O
3. 4CO₂ + 8HO
4. 3CO₂ + 4H₂O
Which part of the chemical industry manufactures drugs and medicines? [9h-53]
1. pharmaceutical
2. dyestuffs
3. plastics
4. petrochemical
Which part of the chemical industry manufactures colours for clothes? [9h-54]
1. pharmaceutical
2. dyestuffs
3. plastics
4. petrochemical
Which part of the chemical industry manufactures PVC for windows? [9h-55]
1. pharmaceutical
2. dyestuffs
3. plastics
4. petrochemical
Which part of the chemical industry manufactures hydrocarbon fuels? [9h-56]
1. pharmaceutical
2. dyestuffs
3. plastics
4. petrochemical

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KS3 Science-Chemistry Quiz on "USING CHEMISTRY" (based on QCA 9H)

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