Which of the following chemical reactions involve the release of energy?

Electrolysis

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Decomposition

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Photosynthesis

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Respiration

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Solution

The correct option is D Respiration
Reaction involve in respiration :
$C_{6} H_{12} O_{6} + 6 O_{2} \to 6 {CO}_{2} + 6 H_{2} O + ENERGY (686 kcal / mol)$
The other reactions involve absorption of energy.

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Which of the following chemical reactions involve the release of energy?

The correct option is D RespirationReaction involve in respiration : C6H12O6 + 6O2 → 6CO2 + 6H2O + ENERGY (686kcal/mol) The other reactions involve absorption of energy.

The correct option is D Respiration
Reaction involve in respiration :
$C_{6} H_{12} O_{6} + 6 O_{2} \to 6 {CO}_{2} + 6 H_{2} O + ENERGY (686 kcal / mol)$
The other reactions involve absorption of energy.