In which of the following cases C-C bond length will be highest?
A
CH3−CF3
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B
FCH2−CH2F
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C
F2CH−CHF2
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D
CF3−CF3
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Solution
The correct option is BFCH2−CH2F According to Bent's Rule more electronegative substituents attached to hybrid orbital that contains more p-character. Hence, more p-character, longer will be bond length.