When zinc metal is heated with caustic soda solution, the gas evolved is:
(1)hydrogen (2)carbon dioxide
(3) oxygen (4)hydrogen choride

Academic Chemistry NCERT Class 10

Correct answer: (1) hydrogen

Explanation: When Zinc metal (Zn) is heated with caustic soda (NaOH) solution, hydrogen gas evolves.

The chemical equation for the reaction is given below:

$Zn (s) + 2NaOH (aq) → Na_2ZnO_2 (aq) + H_2 (g)$

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Updated on: 10-Oct-2022

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(1)hydrogen	(2)carbon dioxide
(3) oxygen	(4)hydrogen choride

When zinc metal is heated with caustic soda solution, the gas evolved is:(1)hydrogen(2)carbon dioxide(3) oxygen(4)hydrogen choride

Kickstart Your Career

When zinc metal is heated with caustic soda solution, the gas evolved is:
(1)hydrogen (2)carbon dioxide
(3) oxygen (4)hydrogen choride