JEE Advanced 2026 Paper 1 Online | Chemical Bonding & Molecular Structure Question 4 | Chemistry

1

JEE Advanced 2026 Paper 1 Online

MCQ (Single Correct Answer)

+3

-1

The correct order of dipole moments for the given species is

A

BF$_3$ = NH$_4^+$ < NF$_3$ < NH$_3$

B

BF$_3$ < NH$_4^+$ < NF$_3$ < NH$_3$

C

NH$_4^+$ < BF$_3$ < NH$_3$ < NF$_3$

D

BF$_3$ < NH$_4^+$ < NH$_3$ < NF$_3$

2

JEE Advanced 2026 Paper 1 Online

MCQ (Single Correct Answer)

+4

-1

Consider the following species:

SOCl$_2$, XeOF$_4$, ClF$_3$, ClF$_5$, XeF$_5^+$, SO$_3^{2-}$, XeF$_3^+$, SF$_4$

List-I contains different molecular shapes and List-II contains total number of species with the same molecular shapes from the given species. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.

List-I	List-II
(P) See-saw	(1) one
(Q) T-Shaped	(2) two
(R) Trigonal Planar	(3) three
(S) Square Pyramidal	(4) four
	(5) zero

A

P → 1; Q → 2; R → 5; S → 3

B

P → 5; Q → 4; R → 2; S → 3

C

P → 3; Q → 2; R → 1; S → 4

D

P → 1; Q → 3; R → 5; S → 4

3

JEE Advanced 2024 Paper 1 Online

MCQ (Single Correct Answer)

+3

-1

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	List-II
(P) XeF$_2$	(1) Trigonal bipyramidal and two lone pair of electrons
(Q) XeF$_4$	(2) Tetrahedral and one lone pair of electrons
(R) XeO$_3$	(3) Octahedral and two lone pair of electrons
(S) XeO$_3$F$_2$	(4) Trigonal bipyramidal and no lone pair of electrons
	(5) Trigonal bipyramidal and three lone pair of electrons