Which of the following statements is `//` are correct

Options

A. Silicon can form long chains like carbon
B. Si-O bonds are weaker than Si-Si or Si-H bonds
C. Silicon can expand its octet unlike carbon
D. Silicon can form multiple bonds like carbon

Answer

C

Explanation

Carbon is the most electronegative element of the group. The electronegativity decreass from C to Pb but not in a regular manner possibly due to filling d and f-orbitals