JEE Main Chemistry question

How many sigma and pi bonds are present in the molecule of dicyanoethylene, N≡C–CH=CH–C≡N?

Answer: (C)

Solution

Each C≡N contributes 1σ+2π (2 nitriles: 2σ, 4π); the central C=C contributes 1σ+1π; the two C–C single bonds linking

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Question ID VK-139362