MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryIonic equilibriumTheory of Acids and Bases

Which of the following is least likely to behave as Lewis’s base?

A.OH

B.H2O

C.NH3

D.BF3✓ Correct

Explanation

3 BF is sp2 hybridized with trigonal planar structure. The central atom present in these have incomplete octet due to shortage of electrons. It can accept electrons from any Lewis’s base and can act as Lewis’s acid. Therefore, it is least likely to behave as base.

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