Question

why does the colour of dry blue litmus paper not change to red with dry HCl gas???​

Answer 1

Explanation:

dry HCL gas don't loses hydrogen ion but when dissolve in water leaves hydrogen ion and changes the color of the litimus paper

Answer 2

Explanation:

to change the colour of blue litmus paper to red , there must be a presence of a acid . dry HCL gas is not acidic because water is required for the disassociation of HCL gas is not acidic we not change the colour of dry blue litmus paper