Resonance in carbonate ion CO 3 2 - is Which of the following is true?

CO 3 2 - has a single structure i.e., resonance hybrid of the above three structures.

It is possible to identify each structure individually by some physical or chemical method.

All these structures are in dynamic equilibrium with each other.

Each structure exists for equal amount of time.

Match List I with List II List I List II A. XeF 4 I.See-saw B. SF 4 II. Square planar C. NH 4 + III. Bent T - shaped D. BrF 3 IV. Tetrahedral Choose the correct answer from the options given below :

A - II , B - I , C - IV , D - III

A - IV , B - III , C - II , D - I

A - II , B - I , C - III , D - IV

A - IV , B - I , C - II , D - III

The magnetic behaviour of Li 2 O , Na 2 O 2 and KO 2 , respectively, are

diamagnetic, diamagnetic and paramagnetic

diamagnetic, paramagnetic and diamagnetic

paramagnetic, paramagnetic and diamagnetic

paramagnetic, diamagnetic and paramagnetic

Statement I:- Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre. Statement II:- The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules. In the light of the above statements, choose the most appropriate answer from the options given below:-

Statement I is incorrect but Statement II is correct.

Both Statement I and Statement II are correct.

Both Statement I and Statement II are incorrect.

Statement I is correct but Statement II is incorrect.

HARD

JEE Main

IMPORTANT

Earn 100

$O - O$ bond length in $H_{2} O_{2}$ is $\underline{X}$ than the $O - O$ bond length in $F_{2} O_{2}$ . The $O - H$ bond length in $H_{2} O_{2}$ is $\underline{Y}$ than that of the $O - F$ bond in $F_{2} O_{2}$ . Choose the correct option for $\underline{X}$ and $\underline{Y}$ from the given below.

40.74% studentsanswered this correctly

Important Questions on Chemical Bonding and Molecular Structure

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 18 March 2021 Shift 2>Q 1

In the following molecules,

Question Image

Hybridisation of carbon $a, b$ and $c$ respectively are :

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 18 March 2021 Shift 2>Q 2

The number of species below that have two lone pairs of electrons in their central atom is ___ (Round off to the Nearest integer)

{SF}_{4}, {BF}_{4}^{-}, {ClF}_{3}, {AsF}_{3}, {PCl}_{5}, {BrF}_{5}, {XeF}_{4}, {SF}_{6}

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 18 March 2021 Shift 1>Q 3

AX

is a covalent diatomic molecule where

A

and

X

are second row elements of periodic table. Based on Molecular orbital theory, the bond order of

AX

2.5 .

The total number of electrons in

AX

is_____. (Round off to the Nearest Integer).

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 17 March 2021 Shift 2>Q 4

Amongst the following, the linear species is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 17 March 2021 Shift 2>Q 5

The total number of

C - C

sigma bond/s in mesityl oxide

(C_{6} H_{10} O)

is (Round off to the Nearest Integer).

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 17 March 2021 Shift 1>Q 6

A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main 16 March 2021 Shift 1>Q 7

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : The $H - O - H$ bond angle in water molecule is $104.5 °$ .

Reason R : The lone pair $-$ lone pair repulsion of electrons is higher than the bond pair $-$ bond pair repulsion.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 13 - Chemical Bonding and Molecular Structure>JEE Main - 9th January 2020 Shift 2>Q 8

The number of

s p^{2}

hybrid orbitals in a molecule of benzene is:

O-O bond length in H2O2 is X¯ than the O-O bond length in F2O2. The O-H bond length in H2O2 is Y¯ than that of the O-F bond in F2O2. Choose the correct option for X¯ and Y¯ from the given below.

Important Questions on Chemical Bonding and Molecular Structure

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