Neet Solved Paper 2013 Question 26
Question: Which of these is least likely to act as a Lewis base?
Options:
A) CO
B) $ {F^{-}} $
C) $ B{F_3} $
D) $ P{F_3} $
Show Answer
Answer:
Correct Answer: C
Solution:
Electron rich species are called Lewis base. Among the given,
$ BF _3 $ is an electron deficient species, so have a capacity of electron accepting instead of donating
thats why it is least likely to act as a Lewis base. It is a Lewis acid.