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Chemistry
Shortest C-C bond length is present in:
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Q. Shortest $ C-C $ bond length is present in:
BVP Medical
BVP Medical 2004
A
$ C{{H}_{3}}-C{{H}_{2}}-C{{H}_{3}} $
B
$ C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}} $
C
$ C{{H}_{2}}=CH-CH=C{{H}_{2}} $
D
$ CH\equiv C-C\equiv CH $
Solution:
Bond length decrease with increase in bond-order. Hence, triple bonded carbon has minimum bond length. $ C-C $ bond-length $ =1.54\overset{\text{o}}{\mathop{\text{A}}}\, $ $ C=C $ bond-length $ =1.33\overset{\text{o}}{\mathop{\text{A}}}\, $ $ C\equiv C $ bond-length $ =1.20\overset{\text{o}}{\mathop{\text{A}}}\, $