sigma and pi bonds

Question

The number of σ and π bonds in ethyne (C₂H₂) are respectively:

RankGuru · Accepted Answer

1. **Ethyne structure**: $H - C \equiv C - H$
2. **Sigma ($\sigma$) bonds**: Each single bond is a $\sigma$ bond. 
- 2 $C-H$ bonds $= 2 \sigma$
- 1 $C \equiv C$ triple bond contains $1 \sigma$ bond.
- Total $\sigma = 2 + 1 = 3$.
3. **Pi ($\pi$) bonds**: A triple bond contains $2 \pi$ bonds.
- Total $\pi = 2$.

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sigma and pi bonds

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