Q4 / 75 · JEE Main 2020 (09 Jan Shift 2) · Chemistry

Which of the following has the shortest $C - C l$ bond?

A
$C l - C H = C H_{2}$
Correct answer
B
$C l - C H = C H - N O_{2}$
C
$C l - C H = C H - C H_{3}$
D
$C l - C H = C H - O C H_{3}$

Solution

Due to –M effect of

- {NO}_{2}

and + M effect of Cl more D.B. character between C – Cl bond. So shortest bond length.

Hence, the correct answer is option: 'B'.

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