Question

1 gram of solid NaCl is taken in a clean and dry test tube and 2 ml of conc. H2SO4 is added to it if the gas produced in the reaction is tested with dry blue Litmus and then wet blue Litmus Paper .In which case will the Litmus Paper change its colour? give the reason for your answer .write the chemical equation for the above reaction.

Answer 1

Wet blue litmus paper

Reason: Hydrogen ions are produced by HCl in the presence of water.

It has acidic nature.

HCl + H2O → H3O+ + Cl-.

Answer 2

Here is yr answr
When the litmus paper is wet it change its colour because hydrogen ions show their presence in the presence of water.