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What order of C-H bond lengths do you e...

What order of `C-H` bond lengths do you expect in `C_(2)H_(6), C_(2)H_(4)` and `C_(2)H_(2)` and why?

A

`d_(C-C)(C_(2)H_(6))gt d_(C-C) (C_(2)F_(6))`

B

`d_(C-C)(C_(2)F_(6))gt d_(C-C)(C_(2)H_(6))`

C

`d_(C-C)(C_(2)F_(6))=d_(C-C)(C_(2)H_(6))`

D

Can't be predicted

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The correct Answer is:
A
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