JEE Advanced 2024 · Paper 1 · Chemistry Q15

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ChemistryList match+3 / -1Question 49 of 51

Based on VSEPR model, match the xenon compounds given in List-I with the corresponding geometries and the number of lone pairs on xenon given in List-II and choose the correct option.

List-I

P
$\ce{XeF2}$
Q
$\ce{XeF4}$
R
$\ce{XeO3}$
S
$\ce{XeO3F2}$

List-II

1
Trigonal bipyramidal and two lone pair of electrons
2
Tetrahedral and one lone pair of electrons
3
Octahedral and two lone pair of electrons
4
Trigonal bipyramidal and no lone pair of electrons
5
Trigonal bipyramidal and three lone pair of electrons

P-5, Q-2, R-3, S-1

P-5, Q-3, R-2, S-4

P-4, Q-3, R-2, S-1

P-4, Q-2, R-5, S-3

Answer and worked solution

Official answer: B

Compound	σ-pairs + lone pairs on Xe	Electron geometry	Lone pairs	List-II
$\ce{XeF2}$	2 + 3	trigonal bipyramidal	3	(5)
$\ce{XeF4}$	4 + 2	octahedral	2	(3)
$\ce{XeO3}$	3 + 1	tetrahedral	1	(2)
$\ce{XeO3F2}$	5 + 0	trigonal bipyramidal	0	(4)

Option (B).

Topics:VSEPR theory Group 18

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JEE Advanced 2024 · Paper 1, Chemistry question 15