The variation in bond dissociation energy of the following compound can be given as: CH3−HICH3CH2−HIICH2=CH−CH2−HIIIC6H5−HIV
A
I>II>III>IV
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B
IV>III>II>I
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C
IV>I>II>III
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D
II>I>IV>III
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Solution
The correct option is DIV>I>II>III The bond dissociation energies vary in the order C6H5−HIV>CH3−HI>CH3CH2−HII>CH2=CHCH2−HIII. The bond dissociation energy is minimum for III due to the presence of carbon-carbon double bond. The bond dissociation energy of benzene is maximum.