Question

It has been observed that dry hydrogen chloride gas does not turn blue litmus red where as hydrochloric acid does. Expalin this observation with the help of an activity and state the reason behind it​

Answer 1

Answer:

Explanation:

Acidity is due to the ability of giving H+ ion. Dry hydrogen chloride does not give hydrogen ions and so it does not act as an acid and does not turn blue litmus red. On the other hand, hydrogen chloride acid in water gives H+ ions and turn blue litmus red.

                                                    OR

HCl can produce these ions only when in the form of aqueous solution. Hence dry HCl gas does not change the colour of dry litmus paper. ... Dry hydrogen chloride gas does not turn blue litmus red whereas hydrochloric acid does.

Answer 2

Answer:

it has been observed that a dry hydrogen chloride does not turn blue litmus to red because it do not ionize in air but when HCL is in water then it's ions get ionize and turn blue litmus to red