Question

Carbon shows a maximum covalency of four whereas other members can expand their covalence due to.

• A. Absence of d – orbitals in carbon
• B. Ability of carbon to form $\mathrm { p } \pi - \mathrm { p } \pi$ multiple bonds
• C. Small size of carbon
• D. Catenation of carbon.

Answer 1

Answer: (A)

Absence of d – orbitals in carbon

Answer 2

: In carbon, only s and p – orbitals are available for bonding therefore, it can accommodate only four pairs of electrons around it.