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JEE Main 202224 JuneEvening Shift

Exam: JEE Main
Year: 2022
Date: 24 June
Shift: Evening Shift
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2022 · 24 June · Evening Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

PCl _ 5 is well known but NCl _ 5 is not.Because,

{PCl}_{5}

is well known but

{NCl}_{5}

is not.Because,

Options

A $N$ - does not have vacant $d$ -orbital
B $P$ - does not have $2d$ orbitals
CBack bonding in ${NCl}_{5}$ is not possible
D $N$ atom is more electronegative so does not forms $5$ bonds

Correct answer

A. $N$ - does not have vacant $d$ -orbital

Step-by-step solution

Due to the absence of vacant

d

orbitals nitrogen cannot form penta halides, so

{NCl}_{5}

is not formed but

{PCl}_{5}

is formed as phosphorous has vacant

d

orbitals

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