Question

Do acids produce ions only in aqueous solution?

NCERT Class 10th Science Chapter 2 Acids Bases and Salts

Answer 1

Acids dissociate in water or aqueous solutions to form ions. These are responsible for conduction of electricity. Acids don’t dissociate hydrogen ions in absence of water. Therefore, we can say that acids produce ions only in aqueous solutions.

Answer 2

Answer:

Explanation:

Take about 1.0g of solid NaCl in a clean and dry test tube.

- Add some concentrated sulphuric acid to the test tube.

Let us write chemical equation for the above reaction.

2NaCl

(s) + H2

SO4(l)

J 2HCl

(g) + Na2

SO4(s)

Test the gas evolved successively with dry and wet blue litmus paper.

In which case does the litmus paper change colour?

You can conclude that dry HCl gas (Hydrogen chloride) is not an acid

because you have noticed that there is no change in colour of dry litmus

paper but HCl aqueous solution is an acid because wet blue litmus paper

turned into red.

Hope you understood