Question

Give reason for the following:-
(a) dry HCL does not change the colour of dry litmus paper
(b) aqueous solution of a salt conduct electricity

Answer 1

dry HCl does not dissociate hydrogen ion in as it is in absence of water

Answer 2

(a) as dry hcl did not reacts with dry litmus as it needs any substance aquase solution. that hcl cannot leave a hydrogen atoms.
(b) as water when gets added with impurities so it conduct electricity