Check sibling questions

Why does dry HCl gas not change the colour of the dry litmus paper?

 

Answer: 

  • Litmus paper shows change in colour only in the presence of H + ions.
  • Acids dissociate to give H + ions only in the aqueous solution.
  • Dry acid does not dissociate to give H + ions.
  • In this case HCL is not in aqueous form nor is the  litmus paper wet and thus the lack of presence of H + ions leads to the litmus paper not changing its colour.

Why does dry HCl gas not change the colour of the dry litmus paper-01.jpg

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo