Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Inorganic Chemistry
869 practice questions
Topics covered
- The Alkali Metals85 practice questions
- The Halogens86 practice questions
- Gases in the Atmosphere86 practice questions
- Reactivity Series163 practice questions
- Extraction and Uses of Metals128 practice questions
- Acids, Alkalis and Titrations83 practice questions
- Acids, Bases and Salt Preparations156 practice questions
- Chemical Tests68 practice questions
Practice questions
261–270 of 359 · Easy
Question 261
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 262
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 263
1 mark · Easy
Answer and see the solution →In terms of proton transfer, what does a base do?
Question 264
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 265
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.
Question 266
3 marks · Easy
Answer and see the solution →In an experiment, iron(III) oxide reacts with dilute hydrochloric acid.
(a)[1 mark]Name the salt formed in this reaction.
(b)[1 mark]Write a balanced chemical equation for the reaction.
(c)[1 mark]State the other product formed, apart from the salt.
Question 267
2 marks · Easy
Answer and see the solution →Explain, using what happens to the hydrogen ions, why the reaction between sodium hydroxide and hydrochloric acid is classified as a neutralisation reaction.
Question 268
2 marks · Easy
Answer and see the solution →Explain which types of metal oxides form soluble alkalis when added to water. Give one example in your answer.
Question 269
3 marks · Easy
Answer and see the solution →The table below shows three reactions of different metal oxides with acids. For each reaction, complete the table by writing the salt and water produced.
Acid Metal oxide Salt Water produced? sulfuric acid calcium oxide nitric acid zinc oxide hydrochloric acid magnesium oxide (a)[3 marks]Complete the table.
Question 270
1 mark · Easy
Answer and see the solution →What are the products when lithium hydroxide reacts with nitric acid?