Question

The number of $\alpha$ and $\pi$ bonds between two carbon atoms in calcium carbide are:

• A. one $\sigma$, one $\pi$
• B. one $\sigma$, two $\pi$
• C. two $\sigma$, one $\pi$
• D. one $\sigma$, three $\pi$

Answer 1

The correct option is B one $\sigma$, two $\pi$

The number of $\sigma$ and $\pi$ bonds between two carbon atoms in calcium carbide are one and two respectively.
There is a $C\equiv C$ triple bond which contains one $\sigma$ and two $\pi$ bonds.