” Decomposition reaction often required energy either in the form of heat light or electricity. ” Justify the statement by mention

2 thoughts on “” Decomposition reaction often required energy either in the form of heat light or electricity. ” Justify the statement by mention”

1. Explanation:

   It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).

   either in the form of heat light or electricity. ” Justify the statement by mentioning one equation of each type…

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2. Answer:

   (1.) Decomposition on heating

   Calcium carbonate when heated gives quicklime (CaO) and carbon dioxide

   CaCO

   3

   →CaO+CO

   2

   (2.) Decomposition by light

   Silver chloride decomposes to silver and chlorine in presence of sunlight

   2AgCl→2Ag+Cl

   2

   (3). Decomposition by electricity

   Water on electrolysis gives hydrogen and oxygen

   2H

   2

   O→2H

   2

   +O

   2

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