The values of bond energies of single, double and triple bonds are in the order :
A
C−C>C=C>C≡C
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B
C=C>C−C>C≡C
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C
C≡C>C=C>C−C
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D
C=C>C≡C>C−C
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Solution
The correct option is CC≡C>C=C>C−C
The bond order and bond length are related in the frolowing way:-
Bond length α1Bond orderα1No of Bonds
Bond energy is directly proportional to bond order as the bond order is directly proportional to no. of bonds and inversely proportional to bond length.
So as the no of bonds in triple bond is maximum (3), then bond order is
maximum and bond length is minimum and similaly the no of bonds for
single bond is least so bond length is maximum and bond energy is minimum.