Question

A. Define :
(a) Photochemical reaction
(b) Electrochemical reaction.
Give one example in each case.​

Answer 1

Answer:

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Answer 2

Answer:

Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light.

Electrochemical reaction, any process either caused or accompanied by the passage of an electric current and involving in most cases the transfer of electrons between two substances—one a solid and the other a liquid.

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