Question

 Hydrochloric acid reacts with a metal X to form a gas Y which burns with a 'pop' sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y.

Write the chemical equation of the reaction of metal X with (i) hydrochloric acid, and (ii) sodium hydroxide solution.

Answer 1

The chemical equation is as follows.

(i) Zn + 2HCl→ZnCl₂ + H₂ ↑

(ii) 2NaOH + Zn→Na₂ZnO₂ + H₂