If C-C bond length in benzene = x; in graphite = y in diamond= z; then, select the correct order of bond length.

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$x > y > z$

$z > y > x$

$x = y < z$

$x = y = z$

answer is A.

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Detailed Solution

The C-C bond has a bond length of 154 pm in diamond compared to 145 pm in graphite. Since bond length is inversely correlated with bond order, diamond has a longer bond length than graphite.

The nature of benzene is fragrant. It reverberates. In benzene, every carbon-carbon bond has the characteristics of a partial double bond.

So, the option is correct $z > y > x$

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