If molecule `MX_3` has zero dipole moment, the sigma bonding orbitals used by M (atomic number `lt21`) are

Options

A. pure p
B. sp-hybridised
C. `sp^(2)` - hybridised
D. `sp^(3)` - hybridised

Answer

C

Explanation

For non-polar `MS_(3)`, it must have triangular planar arrangement, i.e. there should be`sp^(2)` - hybridisation around M.