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Help me understand! - Organic Chemistry - some Basic principles and techniques - NEET

The number of sigma (\sigma) and pi(\pi) bonds in pent-2-en-4-yne is:

  • Option 1)

    10 \sigma bonds and 3 \pi bonds

  • Option 2)

    8 \sigma bonds and 5 \pi bonds

  • Option 3)

    11 \sigma bonds and 2 \pi bonds

  • Option 4)

    13 \sigma bonds and no \pi bonds

Answers (1)
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V Vakul

Option 1

Structure of pent-2-en-4-yne

Here there are 10 \sigma bonds = 6 \; - (C-H) and 4 (C-C) bonds

And 3 \pi bonds = 2 [C \equiv C]  and 1 [C=C]


Option 1)

10 \sigma bonds and 3 \pi bonds

Option 2)

8 \sigma bonds and 5 \pi bonds

Option 3)

11 \sigma bonds and 2 \pi bonds

Option 4)

13 \sigma bonds and no \pi bonds

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