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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.
Solution
The chemical equation is as follows.
(i) Zn + 2HCl→ZnCl2 + H2 ↑
(ii) 2NaOH + Zn→Na2ZnO2 + H2
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