Define:
(b) Electrochemical reaction
Give one example in each case

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Solution

The reaction that occurs with the absorption of electrical energy is called an electrochemical reaction.
An example of such reaction is the electrolysis of sodium chloride to give sodium and chlorine. That is,
$2 N a C l E l e c t r i c i t y ⟶ 2 N a + C l_{2}$

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