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ICSE Class 9 Answered

Define Photochemical reaction and elecrochemical reaction. Give one example each.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Photochemical reaction: The chemical reaction which proceed with the absorption of light energy are called photochemical reactions.

Example: Photosynthesis in plants


  6CO2  +  6H2O  -------------------->  C6H12O2

Electrochemical reaction: The chemical reactions which proceed with the absorption of electric energy are called electrochemical reactions.


           Electric current

2NaCl  ----------------->  2Na  +  Cl2

Answered by | 04 Jun, 2014, 03:23: PM
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