Question

Which of the following species does not acts as a nucleophile?
a) ROH
b) ROR
c) PCl₃
d) BF₃

Answer 1

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Option B is Correct


ROR



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Answer 2

Hi Dear,

● Answer -

(d) BF₃

● Explaination -

• Boron atom has 3 free e- in its outermost shell.
• These 3 e- pair with one e- each from three F atoms to form BF₃ molecule.
• This BF₃ molecule is electron deficient as it has only 6 e- in its valence shell.
• Therefore, BF₃ acts as electrophile & not as a nucleophile.

Hope you understand..