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Standard XII
Chemistry
Octet Rule
Bond energy i...
Question
Bond energy is to break any bond for suppose Cl2's bond is to be broken. Then Cl2 will release energy or absorb energy? Exothermic or endothermic?
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Solution
Dissociation of a bond requires energy and it is an endothermic reaction. Energy is absorbed in the process.
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Assertion :
Exothermic reactions absorb heat.
Reason:
Breaking covalent bonds always requires energy.
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Heat is absorbed in Exothermic reactions BECAUSE energy is required for the breaking of covalent bonds.
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Statement 1: Exothermic reactions absorb heat.
Statement 2: Breaking covalent bonds always requires energy.
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Assertion :Bond energy for breaking up a bond is endothermic. Reason: Heat is required to overpower the attractions between two atoms.
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