MHT CET Chemistry question

In which of the following structures the number of sigma bonds are equal to the number of -bonds?

Answer: (C)

Solution

Tetracyanoethylene has σ bonds: 1 (C=C) + 4 (C–CN) + 4 (C≡N) = 9 and π bonds: 1 + 4×2 = 9,

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Question ID VK-076722