0D sthe Cetot oape&HCIclblue mu – InterviewSolution

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1.	0D sthe Cetot oape&HCIclblue mu
Answer» The colour of litmus paper changes only in the presence of ions like hydrogen (H+) or hydronium (H3O+) ions. HCl can produce these ions only in the form of aqueous solution. Hence dry HCl gas does not change the colour of dry litmus paper.

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