Question

what do you say about the acidic character of :(i) dry HCL gas (ii) HCL solution ​

Answer 1

Answer: i. As HCl is in gaseous form thus it will not give H⁺ ion, i.e. It will not turn blue litmus to red.

ii. HCl solution gives H⁺ ion as it is aq. form and it will turn blue litmus paper to red.

Answer 2

1. dry HCl isn't acidic as it doesn't have any free or it hasn't liberated any H+ ions which are responsible for change in pH of the solution.

2.HCl solution shows acidic nature as it has dissociated to give H+ ions.

These H+ ions change the pH of the solution and show acidic nature.