NEET > Chemical Bonding and Molecular Structure

Explore popular questions from Chemical Bonding and Molecular Structure for NEET. This collection covers Chemical Bonding and Molecular Structure previous year NEET questions hand picked by popular teachers.


Q 1.    

Correct4

Incorrect-1

Which of the following pairs of compounds is isoelectronic and isostructural?

A

{tex} \mathrm { TeI } _ { 2 } , \mathrm { XeF } _ { 2 } {/tex}

B

{tex} \mathrm { IBr } _ { 2 } ^ { - } , \mathrm { XeF } _ { 2 } {/tex}

C

{tex} \mathrm { IF } _ { 3 } , \mathrm { XeF } _ { 2 } {/tex}

{tex} \mathrm { BeCl } _ { 2 } , \mathrm { XeF } _ { 2 } {/tex}

Explanation



Q 2.    

Correct4

Incorrect-1

The species, having bond angles of {tex} 120 ^ { \circ } {/tex} is

A

{tex} \mathrm { ClF } _ { 3 } {/tex}

B

{tex} \mathrm { NCl } _ { 3 } {/tex}

{tex} \mathrm { BCl } {/tex}

D

{tex} \mathrm { PH } _ { 3 } {/tex}

Explanation



Q 3.    

Correct4

Incorrect-1

Which one of the following pairs of species have the same bond order?

A

{tex} \mathrm { O } _ { 2 } , \mathrm { NO } ^ { + } {/tex}

{tex} \mathrm { CN } ^ { - } , \mathrm { CO } {/tex}

C

{tex} \mathrm { N } _ { 2 } , \mathrm { O } _ { 2 } ^ { - } {/tex}

D

{tex} \mathrm { CO } , \mathrm { NO } {/tex}

Explanation



Q 4.    

Correct4

Incorrect-1

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

A

{tex} \mathrm { H } _ { 2 } \mathrm { O } _ { 2 } {/tex}

B

{tex} \mathrm { HCN } {/tex}

Cellulose

D

Concentrated acetic acid

Explanation



Q 5.    

Correct4

Incorrect-1

The hybridizations of atomic orbitals of nitrogen in {tex} \mathrm { NO } _ { 2 } ^ { + } , \mathrm { NO } _ { 3 } ^ { - } {/tex} and {tex} \mathrm { NH } _ { 4 } ^ { + } {/tex} respectively are

A

{tex} s p , s p ^ { 3 } {/tex} and {tex} s p ^ { 2 } {/tex}

B

{tex} s p _ { 2 } ^ { 2 } , s p ^ { 3 } {/tex} and {tex} s p _ { 2 } {/tex}

{tex} s p , s p ^ { 2 } {/tex} and {tex} s p ^ { 3 } {/tex}

D

{tex} s p ^ { 2 } , s p {/tex} and {tex} s p ^ { 3 } {/tex}

Explanation



Q 6.    

Correct4

Incorrect-1

Which of the following pairs of ions is isoelectronic and isostructural?

{tex} \mathrm { CO } _ { 3 } ^ { 2 - } , \mathrm { NO } _ { 3 } ^ { - } {/tex}

B

{tex} \mathrm { ClO } _ { 3 } ^ { - } , \mathrm { CO } _ { 3 } ^ { 2 - } {/tex}

C

{tex} \mathrm { SO } _ { 3 } ^ { 2 - } , \mathrm { NO } _ { 3 } ^ { - } {/tex}

D

{tex} \mathrm { ClO } _ { 3 } ^ { - } , \mathrm { SO } _ { 3 } ^ { 2 - } {/tex}

Explanation



Q 7.    

Correct4

Incorrect-1

The correct geometry and hybridization for {tex} \mathrm { XeF } _ { 4 } {/tex} are

octahedral, {tex} s p ^ { 3 } d ^ { 2 } {/tex}

B

trigonal bipyramidal, {tex} s p ^ { 3 } d {/tex}

C

planar triangle, {tex} s p ^ { 3 } d ^ { 5 } {/tex}

D

square planar, {tex} s p ^ { 3 } d ^ { 2 } {/tex}

Explanation

Q 8.    

Correct4

Incorrect-1

Among the following, which one is a wrong statement?

A

{tex} \mathrm { PH } _ { 5 } {/tex} and {tex} \mathrm { BiCl } _ { 5 } {/tex} do not exist.

B

{tex} p \pi - d \pi {/tex} bonds are present in {tex} \mathrm { SO } _ { 2 } {/tex}

{tex} \mathrm { SeF } _ { 4 } {/tex} and {tex} \mathrm { CH } _ { 4 } {/tex} have same shape.

D

{tex} \mathrm { I } _ { 3 } ^ { + } {/tex} has bent geometry

Explanation

Q 9.    

Correct4

Incorrect-1

Which of the following pairs of compounds is isoelectronic and isostructural?

A

{tex} \mathrm { TeI } _ { 2 } , \mathrm { XeF } _ { 2 } {/tex}

B

{tex} \mathrm { IBr } _ { 2 } ^ { - } , \mathrm { XeF } _ { 2 } {/tex}

C

{tex} \mathrm { IF } _ { 3 } , \mathrm { XeF } _ { 2 } {/tex}

{tex} \mathrm {None} {/tex}

Explanation

Q 10.    

Correct4

Incorrect-1

The species, having bond angles of {tex} 120 ^ { \circ } {/tex} is

A

{tex} \mathrm { ClF } _ { 3 } {/tex}

B

{tex} \mathrm { NCl } _ { 3 } {/tex}

{tex} \mathrm { BCl }_{3}{/tex}

D

{tex} \mathrm { PH } _ { 3 } {/tex}

Explanation



Q 11.    

Correct4

Incorrect-1

Which one of the following pairs of species have the same bond order?

A

{tex} \mathrm { O } _ { 2 } , \mathrm { NO } ^ { + } {/tex}

{tex} \mathrm { CN } ^ { - } , \mathrm { CO } {/tex}

C

{tex} \mathrm { N } _ { 2 } , \mathrm { O } _ { 2 } ^ { - } {/tex}

D

{tex} \mathrm { CO } , \mathrm { NO } {/tex}

Explanation



Q 12.    

Correct4

Incorrect-1

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

A

{tex} \mathrm { H } _ { 2 } \mathrm { O } _ { 2 } {/tex}

B

{tex} \mathrm { HCN } {/tex}

{tex} \mathrm {Cellulose} {/tex}

D

{tex} \mathrm {Concentrated \ acetic\ acid} {/tex}

Explanation


Q 13.    

Correct4

Incorrect-1

The hybridizations of atomic orbitals of nitrogen in {tex} \mathrm { NO } _ { 2 } ^ { + } , \mathrm { NO } _ { 3 } ^ { - } {/tex} and {tex} \mathrm { NH } _ { 4 } ^ { + } {/tex} respectively are

A

{tex} s p , s p ^ { 3 } {/tex} and {tex} s p ^ { 2 } {/tex}

B

{tex} s p ^ { 2 } , s p ^ { 3 } {/tex} and {tex} s p {/tex}

{tex} s p , s p ^ { 2 } {/tex} and {tex} s p ^ { 3 } {/tex}

D

{tex} s p ^ { 2 } , s p {/tex} and {tex} s p ^ { 3 } {/tex}

Explanation



Q 14.    

Correct4

Incorrect-1

Which of the following pairs of ions is isoelectronic and isostructural?

{tex} \mathrm { CO } _ { 3 } ^ { 2 - } , \mathrm { NO } _ { 3 } ^ { - } {/tex}

B

{tex} \mathrm { ClO } _ { 3 } ^ { - } , \mathrm { CO } _ { 3 } ^ { 2 - } {/tex}

C

{tex} \mathrm { SO } _ { 3 } ^ { 2 - } , \mathrm { NO } _ { 3 } ^ { - } {/tex}

D

{tex} \mathrm { ClO } _ { 3 } ^ { - } , \mathrm { SO } _ { 3 } ^ { 2 - } {/tex}

Explanation



Q 15.    

Correct4

Incorrect-1

The correct geometry and hybridization for {tex} \mathrm { XeF } _ { 4 } {/tex} are

octahedral, {tex} s p ^ { 3 } d ^ { 2 } {/tex}

B

trigonal bipyramidal, {tex} s p ^ { 3 } d {/tex}

C

planar triangle, {tex} s p ^ { 3 } d ^ { 3 } {/tex}

D

square planar, {tex} s p ^ { 3 } d ^ { 2 } {/tex}

Explanation

Q 16.    

Correct4

Incorrect-1

Among the following, which one is a wrong statement?

A

{tex} \mathrm { PH } _ { 5 } {/tex} and {tex} \mathrm { BiCl } _ { 5 } {/tex} do not exist.

B

{tex} p \pi - d \pi {/tex} bonds are present in {tex} \mathrm { SO } _ { 2 } {/tex}

{tex} \mathrm { SeF } _ { 4 } {/tex} and {tex} \mathrm { CH } _ { 4 } {/tex} have same shape.

D

{tex} \mathrm { I } _ { 3 } ^ { + } {/tex} has bent geometry

Explanation

Q 17.    

Correct4

Incorrect-1

Consider the molecules {tex} \mathrm { CH } _ { 4 } , \mathrm { NH } _ { 3 } {/tex} and {tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex} Which of the given statements is false?

A

The {tex} \mathrm { H } - \mathrm { O } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex} is smaller than the {tex} \mathrm { H } - \mathrm { N } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { NH } _ { 3 } {/tex} .

B

The {tex} \mathrm { H } - \mathrm { C } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { CH } _ { 4 } {/tex} is larger than the {tex} \mathrm { H } - \mathrm { N } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { NH } _ { 3 } {/tex} .

C

The {tex} \mathrm { H } - \mathrm { C } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { CH } _ { 4 } , {/tex} the {tex} \mathrm { H } - \mathrm { N } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { NH } _ { 3 } , {/tex} and the {tex} \mathrm { H } - \mathrm { O } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex} are all greater than {tex} 90 ^ { \circ } . {/tex}

The {tex} \mathrm { H } - \mathrm { O } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex} is larger than the {tex} \mathrm { H } - \mathrm { C } - \mathrm { H } {/tex} bond angle in {tex} \mathrm { CH } _ { 4 } {/tex}

Explanation

Q 18.    

Correct4

Incorrect-1

Predict the correct order among the following:

A

{tex} \begin{aligned} \text { bond pair } - \text { bond pair} > \text { lone pair - bond pair} > \text { lone pair } - \text { lone pair } \end{aligned} {/tex}

B

{tex} \begin{aligned} \text { lone pair } - \text { bond pair} > \text { bond pair - bond pair}> \text { lone pair } - \text { lone pair } \end{aligned} {/tex}

{tex} \begin{aligned} \text { lone pair } - \text { lone pair} > \text { lone pair - bond pair}> \text { bond pair } - \text { bond pair } \end{aligned} {/tex}

D

{tex} \begin{aligned} \text { lone pair } - \text { lone pair}>\text { bond pair - bond pair} >\text {lone pair } - \text { bond pair } \end{aligned} {/tex}

Explanation


Q 19.    

Correct4

Incorrect-1

In which of the following pairs, both the species are not isostructural?

A

{tex} \mathrm {Diamond, Silicon \ carbide} {/tex}

B

{tex} \mathrm { NH } _ { 3 } , \mathrm { PH } _ { 3 } {/tex}

{tex} \mathrm { XeF } _ { 4 } , \mathrm { XeO } _ { 4 } {/tex}

D

{tex} \mathrm { SiCl } _ { 4 } , \mathrm { PCl } _ { 4 } ^ { + } {/tex}

Explanation



Q 20.    

Correct4

Incorrect-1

Decreasing order of stability of {tex} \mathrm { O } _ { 2 } , \mathrm { O } _ { 2 } ^ { - } , \mathrm { O } _ { 2 } ^ { + } {/tex} and {tex} \mathrm { O } _ { 2 } ^ { 2 - } \mathrm { is } {/tex}

A

{tex} \mathrm { O } _ { 2 } ^ { 2 - } > \mathrm { O } _ { 2 } ^ { - } > \mathrm { O } _ { 2 } > \mathrm { O } _ { 2 } ^ { + } {/tex}

B

{tex} \mathrm { O } _ { 2 } > \mathrm { O } _ { 2 } ^{+} > \mathrm { O } _ { 2 } ^ { 2 - } > \mathrm { O } _ { 2 } ^ { - } {/tex}

C

{tex} \mathrm { O } _ { 2 } ^ { - } > \mathrm { O } _ { 2 } ^ { 2 - } > \mathrm { O } _ { 2 } ^ { + } > \mathrm { O } _ { 2 } {/tex}

{tex} \mathrm { O } _ { 2 } ^ { + } > \mathrm { O } _ { 2 } > \mathrm { O } _ { 2 } ^ { - } > \mathrm { O } _ { 2 } ^ { 2 - } {/tex}

Explanation



Q 21.    

Correct4

Incorrect-1

Which of the following pairs of ions are isoelectronic and isostructural?

A

{tex} \mathrm { SO } _ { 3 } ^ { 2 - } , \mathrm { NO } _ { 3 } ^ { - } {/tex}

{tex} \mathrm { ClO } _ { 3 } ^ { - } , \mathrm { SO } _ { 3 } ^ { 2 - } {/tex}

C

{tex} \mathrm { CO } _ { 3 } ^ { 2 - } , \mathrm { SO } _ { 3 } ^ { 2 - } {/tex}

D

{tex} \mathrm { ClO } _ { 3 } ^ { - } , \mathrm { CO } _ { 3 } ^ { 2 - } {/tex}

Explanation

Q 22.    

Correct4

Incorrect-1

The correct bond order in the following species

A

{tex} \mathrm { O } _ { 2 } ^ { + } < \mathrm { O } _ { 2 } ^ { - } < \mathrm { O } _ { 2 } ^ { 2 + } {/tex}

{tex} \mathrm { O } _ { 2 } ^ { - } < \mathrm { O } _ { 2 } ^ { + } < \mathrm { O } _ { 2 } ^ { 2 + } {/tex}

C

{tex} \mathrm { O } _ { 2 } ^ { 2 + } < \mathrm { O } _ { 2 } ^ { + } < \mathrm { O } _ { 2 } ^ { - } {/tex}

D

{tex} \mathrm { O } _ { 2 } ^ { 2 + } < \mathrm { O } _ { 2 } ^ { - } < \mathrm { O } _ { 2 } ^ { + } {/tex}

Explanation

Q 23.    

Correct4

Incorrect-1

Which of the following options represents the correct bond order?

A

{tex} \mathrm { O } _ { 2 } ^ { - } > \mathrm { O } _ { 2 } < \mathrm { O } _ { 2 } ^ { + } {/tex}

B

{tex} \mathrm { O } _ { 2 } ^ { - } < \mathrm { O } _ { 2 } > \mathrm { O } _ { 2 } ^ { + } {/tex}

C

{tex} \mathrm { O } _ { 2 } ^ { - } > \mathrm { O } _ { 2 } > \mathrm { O } _ { 2 } ^ { + } {/tex}

{tex} \mathrm { O } _ { 2 } ^ { - } < \mathrm { O } _ { 2 } < \mathrm { O } _ { 2 } ^ { + } {/tex}

Explanation

Q 24.    

Correct4

Incorrect-1

Maximum bond angle at nitrogen is present in which of the following?

{tex} \mathrm { NO } _ { 2 } ^ { + } {/tex}

B

{tex} \mathrm { NO } _ { 3 } ^ { - } {/tex}

C

{tex} \mathrm { NO } _ { 2 } {/tex}

D

{tex} \mathrm { NO } _ { 2 }^{-} {/tex}

Explanation

Q 25.    

Correct4

Incorrect-1

Which of the following molecules has the maximum dipole moment?

A

{tex} \mathrm { CO } _ { 2 } {/tex}

B

{tex} \mathrm { CH } _ { 4 } {/tex}

{tex} \mathrm { NH }_3 {/tex}

D

{tex} \mathrm { NF } _ { 3 } {/tex}

Explanation