Question

Dry HCL gas does not change the colour of blue litmus paper. Give reason?

Answer 1

Answer:

in dry state, HCI gas does not give any H+ ions. It does not behave as an acid. That is why the colour of litmus paper does not change.

Explanation:

Answer 2

Dry HCL gas does not change the colour of blue litmus paper because:

• Acids dissociate to give H + ions only in the aqueous solution.
• Dry acid does not dissociate to give H + ions.
• In this case, HCL is neither in the aqueous form nor in the litmus paper wet.
• Hence, the lack of presence of H + ions leads to the litmus paper not changing its colour.