Question

state reason for the following -
a) small amount of acid is added to form during electrolysis of water .
b) When ammonium chloride is dissolved in water in a test tube ​

Answer 1

a] by the addition of a small amount of acid during electrolysis of water, water could be decomposed to hydrogen gas and oxgyen gas easily.

b] (NH4Cl) in water in a test tube, the test tube becomes cold as it takes heat from the surrounding water. Hence, it is an endothermic reaction.

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