Chapter 5 – Acids, Bases and Salts
Assignment 2
Q.1. Name one mineral acid.
Q.2. Which gas is produced when sodium carbonate reacts with dilute hydrochloric acid?
Q.3. Name the reaction between an acid and a base which forms a salt and water.
Q.4. Which acid is used in the manufacture of the fertilizer superphosphate?
Q.5. Which base does not have a metal atom in its molecule?
Q.6. Is sodium hydroxide an acid or a base?
Q.7. If you are a manufacture of soap, which base would you require?
Q.8. Which base will you take as medicine, if you are having a stomach-ache due to indigestion?
Q.9. What is the colour of litmus paper in an alkali?
Q.10. What is an acid-base indicator? Give one example.
Q.11. Name one each of acidic, basic and neutral substances.
Q.12. What happens when dilute sulphuric acid is added to zinc?
Q.13. How can carbon dioxide be prepared from an acid?
Q.14. Give two examples each of strong acids and weak acids.
Q.15. Why does a base applied to your skin give relief from an ant bite?
Q.16. Give two main uses each of
(a) sulphuric acid
(b) hydrochloric acid
(c) nitric acid
Q.17. State two methods by which salts can be prepared. Give one example of each.
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