Formation of a compound involves ___________ of energy
A
absorption
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B
evolution
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C
A or B
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D
None of the above
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Solution
The correct option is A A or B The formation of a compound involves the absorption or evolution of energy such as heat, light or electricity. For example - Carbon reacts with oxygen forming CO2 along with the liberation of heat. On the other hand, photosynthesis is an endothermic reaction where plants make glucose and oxygen from carbon dioxide and water by absorbing sun's energy.