Question

why does dry HCL gas not changes the colour of the dry litmus paper'?​

Answer 1

Dry HCL it does not dissociate to give H+ ions. Acids dissociate to give ions only in the aqueous solution. In this HCL is not in aqueous form nor litmus paper is wet, so the colour of litmus paper does not change.

Answer 2

Answer:

because it not wet litmus paper and when litmus paper are wet then it change colour it give H+ ion

Explanation:

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