Question

Why does dry HCl gas not change the colour of the dry litmus paper but changes
to red when it is moist?​

Answer 1

Answer:

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 the aqueous form nor the litmus paper is wet, so the colour of the litmus paper does not change.

Explanation:

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Answer 2

Answer:

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 the aqueous form nor the litmus paper is wet, so the color of the litmus paper does not change.

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