Hydrocarbons Question 130
Question: Shortest C-C bond length is present in [BVP 2004]
Options:
A) $ CH_3-CH_2-CH_3 $
B) $ CH_3CH_2CH_2CH_3 $
C) $ CH_2=CH-CH=CH_2 $
D) $ CH\equiv C-C\equiv CH $
Show Answer
Answer:
Correct Answer: D
Solution:
Bond length decrease with increase in Bond order.
Hence triple bonded carbon has minimum bond length.
$ CCbondlength=1.54{\AA} $
$ C=Cbondlength=1.33{\AA} $
$ C~Cbondlength=1.22{\AA} $