Question

by giving at least 2example describe evolution of gas in an chemical reaction​

Answer 1

Answer:

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.

A replacement reaction concerning zinc metal and hydrogen chloride:

Zn + 2 HCl → ZnCl

2 + H

2 (gas)

In this example, hydrogen gas in diatomic form is released.

A replacement reaction where gaseous hydrogen chloride and fluorine gas react to release diatomic chlorine gas (because fluorine is more electronegative):

2 HCl + F

2 → 2 HF + Cl

2 (gas)

Explanation:

please mark me as brainlist answer