Question:
The number of sigma (σ) and pi π bonds in C2H2 molecule is
The number of sigma (σ) and pi π bonds in C2H2 molecule is
Updated On: Apr 5, 2025
- 3 sigma and zero pi
- 3 sigma and 2 pi
- 2 sigma and 3 pi
- 4 sigma and 1 pi
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The Correct Option is B
Solution and Explanation
The molecular structure of \( C_2H_2 \) (ethyne or acetylene) involves a triple bond between two carbon atoms. This triple bond consists of one sigma bond and two pi bonds. Additionally, each carbon atom is bonded to one hydrogen atom with a sigma bond. Thus, in \( C_2H_2 \):
There are 3 sigma bonds: 1 between the two carbon atoms, and 2 between each carbon and hydrogen.
There are 2 pi bonds in the triple bond between the carbon atoms.
The correct option is (B): 3 sigma and 2 pi
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