Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Reactions of acids
18 practice questions
Practice questions
1–7 of 7 · Easy
Question 1
1 mark · Easy
Answer and see the solution →State the products formed when iron reacts with dilute hydrochloric acid.
Question 2
3 marks · Easy
Answer and see the solution →Answer the following questions about acids and bases in terms of proton transfer.
(a)[1 mark]Define an acid in terms of proton transfer.
(b)[1 mark]Define a base in terms of proton transfer.
(c)[1 mark]State whether ammonia (NH₃) acts as an acid or a base when it reacts with hydrogen chloride gas. Explain your answer in terms of proton transfer.
Question 3
2 marks · Easy
Answer and see the solution →Explain, in terms of proton transfer, why hydrochloric acid acts as an acid when it reacts with potassium hydroxide.
Question 4
3 marks · Easy
Answer and see the solution →The table shows the effects of adding different metals to dilute sulfuric acid.
Observations when metals are added to sulfuric acid Metal Observation Calcium Fizzes rapidly, gas produced, solid disappears Copper No reaction Iron Slow fizzing, solid gradually disappears (a)[1 mark]State which metal does not react with dilute sulfuric acid.
(b)[1 mark]Write the balanced chemical equation for the reaction that takes place with calcium.
(c)[1 mark]Name the gas produced in the reaction with calcium.
Question 5
1 mark · Easy
Answer and see the solution →In terms of proton transfer, what does a base do?
Question 6
3 marks · Easy
Answer and see the solution →The following statements are about reactions of acids with carbonates.
(a)[1 mark]Write a word equation for the reaction between nitric acid and calcium carbonate.
(b)[1 mark]State the name of the salt produced in this reaction.
(c)[1 mark]Name the other two products formed in this reaction.
Question 7
2 marks · Easy
Answer and see the solution →Hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH).
Define the terms acid and base in terms of proton transfer.