Reactions of acids and salts Quiz
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5 questions, one answer each
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1. Zinc is added to dilute hydrochloric acid. Which gas is made?
- A. Hydrogen
- B. Carbon dioxide
- C. Oxygen
- D. Chlorine
2. Which salt is made when copper(II) oxide reacts with dilute nitric acid?
- A. Copper(II) sulfate
- B. Copper(II) nitrate
- C. Copper(II) chloride
- D. Copper(II) carbonate
3. A gas turns limewater milky. Which gas is it?
- A. Hydrogen
- B. Oxygen
- C. Carbon dioxide
- D. Steam
4. Which reactants make a salt, water and carbon dioxide?
- A. Alkali and a metal
- B. Acid and a metal
- C. Acid and a metal oxide
- D. Acid and a carbonate
5. Why do chemists add an excess of copper(II) oxide when making copper(II) sulfate?
- A. To make the reaction faster
- B. To make the solution acidic
- C. To make sure all the acid has reacted
- D. To make the crystals bigger