NEET UG CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)

1 Easy

1 of 1

Analyzing +4 | -1

Fluorine is more electronegative than either boron or phosphorus. What conclusion can be drawn from the fact that

\mathrm{B}{\mathrm{F}_3}

has no dipole moment but

\mathrm{P}{\mathrm{F}_3}

has?

View answer and explanation

Correct option: D

The

\mathrm{B}{\mathrm{F}_3}

molecule must be planar triangular

Option D (The

\mathrm{B}{\mathrm{F}_3}

molecule must be planar triangular) is correct because the absence of a dipole moment in

BF_3

indicates a symmetrical, planar triangular structure, while

PF_3

has a dipole moment due to its pyramidal shape.

More Questions from 13 TH GROUP ELEMENTS (P-BLOCK)

Practice All Chapter MCQs →

{H}_3 {PO}_4

{H}_3 {BO}_3

{P}\, \& {~B}

N{H_3}

B{F_3}

\mathrm{TI}

\mathrm{d}

\mathrm{f}