Question

If molecule `MX_3` has zero dipole moment, the sigma bonding orbitals used by M (atomic number `lt21`) are
A. pure p
B. sp hybrid
C. `sp^(2)` hybrid
D. `sp^(3)` hybrid

Answer 1

Correct Answer - C
In trigonal planar geometry (for `sp^(2)` hybridization), the vector sum of two bond moments is equal and oppsite to the third.