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Enthalpy

Which among t...

Question

Which among the following sequences is correct about the bond energy of $C - C, C = C$ and $C \equiv C$ bonds?

C \equiv C > C = C > C - C

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C \equiv C < C = C < C - C

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C = C > C \equiv C > C - C

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C \equiv C > C - C > C = C

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Solution

The correct option is A $C \equiv C > C = C > C - C$
The bond energy of a molecule increase with increase in the bond multiplicity,
so, triple bond have highest bond energy and single bond is having the least energy.

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