The Lewis acidity of BF₃ is less than CBl₃ even though fluorine is more electronegative than chlorine. It is… · ABC26IN0449

Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Element – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium

The Lewis acidity of $\mathrm{BF}_{3}$ is less than $\mathrm{CBl}_{3}$ even though fluorine is more electronegative than chlorine. It is due to
(a)stronger $2\mathrm{p}\,(\mathrm{B})-2\mathrm{p}\,(\mathrm{F})\,\sigma$ – bonding
(b)stronger $2\mathrm{p}\,(\mathrm{B})-2\mathrm{p}\,(\mathrm{F})\,\pi$ – bonding
(c)stronger $2\mathrm{p}\,(\mathrm{B})-2\mathrm{p}\,(\mathrm{Cl})\,\sigma$ – bonding
(d)stronger $2\mathrm{p}\,(\mathrm{B})-2\mathrm{p}\,(\mathrm{Cl})\,\pi$ – bonding
Answer
Answer (as printed): B
Explanation
No explanation was printed for this question.

Study loop for Main Group Elements

1. Practise the PYQsPrevious-year questions, with answers

· Browse this chapter in the app