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BITSAT 2021

Exam: BITSAT
Year: 2021
Subject: Chemistry
Chapter: Chemical Bonding and Molecular Structure

BITSAT 2021 · Chemistry · Chemical Bonding and Molecular Structure

Which of the following set contains species having same angle...

Which of the following set contains species having same angle around the central atom?

Options

A $\mathrm{SF}_{4}, \mathrm{CH}_{4}, \mathrm{NH}_{3}$
B $\mathrm{NF}_{3}, \mathrm{BCl}_{3}, \mathrm{NH}_{3}$
C $\mathrm{BF}_{3}, \mathrm{NF}_{3}, \mathrm{AlCl}_{3}$
D $\mathrm{BF}_{3}, \mathrm{BCl}_{3}, \mathrm{BBr}_{3}$

Correct answer

D. $\mathrm{BF}_{3}, \mathrm{BCl}_{3}, \mathrm{BBr}_{3}$

Step-by-step solution

\mathrm{BF}_{3}, \mathrm{BCl}_{3}, \mathrm{BBr}_{3}

are

s p^{2}

hybridised. So, all have same structure and bond angle i.e.

120^{{}^{\circ}}

.

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