Question

Write a balanced chemical reaction that takes place when ‘X’ and ‘Y’ react with each other. The product so produced will turn blue litmus red only when wet, why?

Answer 1

H₂(g) + Cl₂(g) → 2HCl(g) 

The Hydrogen Chloride gas produced turns only wet blue Litmus red as HCl get dissociated in water to give out H⁺ ion.