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.

Soln:

The answer is (b) add acid to water.

Explanation:

If we add water to acid, it will be an exothermic reaction which will produce a lot of heat which may lead to an explosion. Hence, water should be added to the acid.