1.

If a molecule \[M{{X}_{3}}\] has zero dipole moment, the sigma bonding orbital used by M are [IIT 1981; MP PMT 1994; Kerala PMT 2004]

A.                 \[s{{p}^{3}}d-\]hybrid   
B.                 \[sp-\]hybrid
C.                 \[s{{p}^{3}}{{d}^{2}}-\]hybrid    
D.                 \[s{{p}^{2}}-\]hybrid
Answer» E.


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