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MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryIonic equilibriumPrevious Year Questions

Which of these is least likely to act as a Lewis’s acid? (NEET 2013)

A.BF3

B.PF3✓ Correct

C.CO

D.F+

Explanation

PF3 is Lewis’s base (electron pair donor).

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