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Decreasing order C-C bond length is (I) ...

Decreasing order C-C bond length is (I) `C_(2)H_(4)` , (II) `C_(2)H_(2)`
(III) `C_(6)H_(6)`, (IV) `C_(2)H_(6)`

A

IV gt III gt I gt II

B

I gt II gt IV gt III

C

II gt I gt IV gt III

D

IV gt I gt III gt II

Text Solution

Verified by Experts

The correct Answer is:
A
Bond length` prop (1)/("Bond order")`
`"Bond order" = ("Bonding -antibonding electron")/(2)`
Bond order is highest for `C_2 H_6`it has minimum bond strength.
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