Question

Number and type of bonds between two carbon atoms in CaC2 are :

• A. One sigma ($\sigma$) and one pi ($\pi$) bond
• B. One $\sigma$ and two $\pi$ bonds
• C. One $\sigma$ and one and a half $\pi$ bond
• D. One $\sigma$ bond

Answer 1

Answer: (B)

One $\sigma$ and two $\pi$ bonds

Answer 2

CaC2 exists as Ca2+ and C22–

.