Hydrogen chloride gas turns the blue litmus paper:
red
green
black
no change in colour

Question

Hydrogen chloride gas turns the blue litmus paper-redgreenblackno change in colour

Toppr Admin · Accepted Answer

The colour of blue litmus paper changes only in the presence of ions like hydrogen -H- or hydronium -H3O- ions- HCl can produce these ions only in an aqueous solution-xA0-Hence dry HCl gas does not change the colour of dry litmus paper-

Hydrogen chloride gas turns the blue litmus paper:redgreenblackno change in colour

The colour of blue litmus paper changes only in the presence of ions like hydrogen (H+) or hydronium (H3O+) ions. HCl can produce these ions only in an aqueous solution. Hence dry HCl gas does not change the colour of dry litmus paper.

Hydrogen chloride gas turns the blue litmus paper:
red
green
black
no change in colour

The colour of blue litmus paper changes only in the presence of ions like hydrogen ( $H^{+}$ ) or hydronium ( $H_{3} O^{+}$ ) ions. HCl can produce these ions only in an aqueous solution. Hence dry HCl gas does not change the colour of dry litmus paper.