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Question: Answered & Verified by Expert
Which of these is least likely to act as Lewis base?
ChemistryIonic EquilibriumBITSATBITSAT 2010
Options:
  • A $\mathrm{F}^{-}$
  • B $\mathrm{BF}_{3}$
  • C $\mathrm{PF}_{3}$
  • D $\mathrm{CO}$
Solution:
1735 Upvotes Verified Answer
The correct answer is: $\mathrm{BF}_{3}$
$\mathrm{BF}_{3}$ is Lewis acid (e- pair acceptor)

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