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Write a balanced chemical equation for a photo- decomposition reaction. Is photosynthesis example for photodecomposition reaction ?




no,photosynthesis is not a example for photodecomposition rection.

There are many photo decomposition reactions ,some if them shown below :
2 AgCl ( s ) in the presence of sunlight = 2 Ag ( s ) + Cl2 ( g ) , When AgCl crystals of white color kept in glass disc and placed under sunlight turns into grey color Ag powder as it loses Cl2 gas ,the same we can describe for AgBr crystals.
2 H2O2 ( i ) in the presence of light = 2 H2O ( l ) + O2 ( g ), Hydrogen Peroxide decomposes to water and Oxygen gas under sun light

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