Question

give an example of chemical reaction of evolution of gas .
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Answer 1

Explanation:

A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may be carried out in a fume chamber when the gases produced are poisonous when inhaled or explosive.

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Answer 2

Answer:Zn + HCl→ZnCl+H2

Explanation:When zinc reacts with hydrochloric acid, it forms the salt zinc chloride and releases the gas, hydrogen.

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