Question

Question 1. An oxide is acidic and has a pungent odour. It could be (a) sulphur dioxide (b) carbon dioxide (c) sodium oxide (d) nitrogen dioxide Question 2. Out of these gases which one is used in fire extinguishers (a) CO2 (b) SO2 (c) NO2 (d) H2S Question 3. The correct way of making a solution of acid in water is to (a) add water to acid (b) add acid to water (c) mix acid and water simultaneously (d) add water to acid in a shallow container Question 4. Products of a neutralisation reaction are always: (a) an acid and a base (b) an acid and a salt (c) a salt and water (d) a salt and a base​

Answer 1

Answer:

1. (d) nitrogen dioxide

2.(a) CO2

3.(a) add water to acid

4.(c) a salt and water.

Explanation:

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