Q 1 :

Choose the polar molecule from the following.               [2024]

• ${\mathrm{CCl}}_4$

   

• ${\mathrm{CO}}_2$

   

• ${\mathrm{CH}}_2={\mathrm{CH}}_2$

   

• ${\mathrm{CHCl}}_3$

   

Q 2 :

Given below are two statements:

Statement - I: Since Fluorine is more electronegative than nitrogen, the net dipole moment of ${\mathrm{NF}}_3$ is greater than ${\mathrm{NH}}_3$.

Statement - II: In ${\mathrm{NH}}_3$, the orbital dipole due to lone pair and the dipole moment of NH bonds are in opposite direction, but in ${\mathrm{NF}}_3$ the orbital dipole due to lone pair and dipole moments of N-F bonds are in same direction.

In the light of the above statements, choose the most appropriate from the options given below:          [2024]

• Statement I is true but Statement II is false.

   

• Both Statement I and Statement II are false.

   

• Both Statement I and Statement II are true.

   

• Statement I is false but Statement II is true.

   

Q 3 :

Number of molecules/ions from the following in which the central atom is involved in ${\mathrm{sp}}^3$ hybridization is ________.

${\mathrm{NO}}_3^{-},{\mathrm{BCl}}_3,{\mathrm{ClO}}_2^{-},{\mathrm{ClO}}_3$                      [2024]

• 3

   

• 2

   

• 1

   

• 4

   

Q 4 :

The number of species from the following that have pyramidal geometry around the central atom is ________.

${\mathrm{S}}_2{\mathrm{O}}_3^{2-},{\mathrm{SO}}_4^{2-},{\mathrm{SO}}_3^{2-},{\mathrm{S}}_2{\mathrm{O}}_7^{2-}$                      [2024]

• 1

   

• 2

   

• 3

   

• 4

   

Q 5 :

Match List-I with List-II.

	List-I		List-II
A.	$\mathrm{ICl}$	I.	T-shape
B.	${\mathrm{ICl}}_3$	II.	Square pyramidal
C.	${\mathrm{ClF}}_5$	III.	Pentagonal bipyramidal
D.	${\mathrm{IF}}_7$	IV.	Linear

 

Choose the correct answer from the options given below:                  [2024]

• (A)–(IV), (B)–(I), (C)–(II), (D)–(III)

   

• (A)–(I), (B)–(IV), (C)–(III), (D)–(II)

   

• (A)–(I), (B)–(III), (C)–(II), (D)–(IV)

   

• (A)–(IV), (B)–(III), (C)–(II), (D)–(I)

   

Q 6 :

Match List I with List II

	List I (Molecular/Species)		List II (Property/Shape)
A.	${\mathrm{SO}}_2{\mathrm{Cl}}_2$	I.	Paramagnetic
B.	$\mathrm{NO}$	II.	Diamagnetic
C.	${\mathrm{NO}}_2^{-}$	III.	Tetrahedral
D.	${\mathrm{I}}_3^{-}$	IV.	Linear

 

Choose the correct answer from the options given below:                                          [2024]

• A–III, B–IV, C–II, D–I

   

• A–IV, B–I, C–III, D–II

   

• A–II, B–III, C–I, D–IV

   

• A–III, B–I, C–II, D–IV

   

Q 7 :

Match List I with List II.

	List I (Hybridization)		List II (Orientation in Space)
A.	$s{p}^3$	I.	Trigonal bipyramidal
B.	$ds{p}^2$	II.	Octahedral
C.	$s{p}^{3}d$	III.	Tetrahedral
D.	$s{p}^3{d}^2$	IV.	Square planar

 

Choose the correct answer from the options given below:                      [2024]

• A–IV, B–III, C–I, D–II

   

• A–II, B–I, C–IV, D–III

   

• A–III, B–IV, C–I, D–II

   

• A–III, B–I, C–IV, D–II

   

Q 8 :

Match List I with List II

	List I (Compound/Species)		List II (Shape/Geometry)
A.	${\mathrm{SF}}_4$	I.	Tetrahedral
B.	${\mathrm{BrF}}_3$	II.	Pyramidal
C.	${\mathrm{BrO}}_3^{-}$	III.	See Saw
D.	${\mathrm{NH}}_4^{+}$	IV.	Bent T-Shape

 

Choose the correct answer from the options given below:                   [2024]

• A–III, B–II, C–IV, D–I

   

• A–II, B–IV, C–III, D–I

   

• A–II, B–III, C–I, D–IV

   

• A–III, B–IV, C–II, D–I

   

Q 9 :

Match List I with List II

	List I (Molecule)		List II (Shape)
A.	${\mathrm{NH}}_3$	I.	Square pyramidal
B.	${\mathrm{BrF}}_5$	II.	Tetrahedral
C.	${\mathrm{PCl}}_5$	III.	Trigonal pyramidal
D.	${\mathrm{CH}}_4$	IV.	Trigonal bipyramidal

 

Choose the correct answer from the options given below:                  [2024]

• A–IV, B–III, C–I, D–II

   

• A–II, B–IV, C–I, D–III

   

• A–III, B–IV, C–I, D–II

   

• A–III, B–I, C–IV, D–II

   

Q 10 :

In which one of the following pairs the central atoms exhibit $s{p}^2$ hybridization?            [2024]

• ${\mathrm{NH}}_2^{-}$ and ${\mathrm{BF}}_3$

   

• ${\mathrm{NH}}_2^{-}$ and ${\mathrm{H}}_2\mathrm{O}$

   

• ${\mathrm{BF}}_3$ and ${\mathrm{NO}}_2^{-}$

   

• ${\mathrm{H}}_2\mathrm{O}$ and ${\mathrm{NO}}_2$

   

Q 11 :

The number of non-polar molecules from the following is ___________ .

${\text{HF, H}}_2{\text{O, SO}}_2{\text{, H}}_2{\text{, CO}}_2{\text{, CH}}_4{\text{, NH}}_3{\text{, HCl, CHCl}}_3{\text{, BF}}_3$                [2024]

Q 12 :

The total number of molecules with zero dipole moment among ${\mathrm{CH}}_4,{\mathrm{BF}}_3,{\mathrm{H}}_2\mathrm{O},\mathrm{HF},{\mathrm{NH}}_3,{\mathrm{CO}}_2$ and ${\mathrm{SO}}_2$ is _____.               [2024]

Q 13 :

A diatomic molecule has a dipole moment of 1.2 D. If the bond distance is 1${\mathrm{A}}^{°}$, then fractional charge on each atom is _____ $\times {10}^{-1}$ esu. (Given 1 D = ${10}^{-18}$ esucm)    [2024]

Q 14 :

Total number of species from the following with central atom utilising $s{p}^2$ hybrid orbitals for bonding is ___________

${\text{NH}}_3,{\text{SO}}_2,{\text{SiO}}_2,{\text{BeCl}}_2,{\text{C}}_2{\text{H}}_2,{\text{C}}_2{\text{H}}_4,{\text{BCl}}_3,\text{HCHO},{\text{C}}_6{\text{H}}_6,{\text{BF}}_3,{\text{C}}_2{\text{H}}_4{\text{Cl}}_2$            [2024]

Q 15 :

The molecules having square pyramidal geometry are                    [2025]

• ${\mathrm{SbF}}_5 \& {\mathrm{PCl}}_5$

   

• ${\mathrm{SbF}}_5 \& {\mathrm{XeOF}}_4$

   

• ${\mathrm{BrF}}_5 \& {\mathrm{PCl}}_5$

   

• ${\mathrm{BrF}}_5 \& {\mathrm{XeOF}}_4$

   

Q 16 :

Consider $‘n’$ is the number of lone pair of electrons present in the equatorial position of the most stable structure of ${\mathrm{ClF}}_3$. The ions from the following with $‘n’$ number of unpaired electron are                              [2025]

(A)  ${\mathrm{V}}^{3+}$
(B)  ${\mathrm{Ti}}^{3+}$
(C)  ${\mathrm{Cu}}^{2+}$
(D)  ${\mathrm{Ni}}^{2+}$
(E)  ${\mathrm{Ti}}^{2+}$

Choose the correct answer from the options given below :

• (B) and (C) Only

   

• (A) and (C) Only

   

• (B) and (D) Only

   

• (A), (D) and (E) Only

   

Q 17 :

Which among the following molecules is (a) involved in $s{p}^{3}d$ hybridization, (b) has different bond lengths and (c) has lone pair of electrons on the central atom?        [2025]

• ${\mathrm{PF}}_5$

   

• ${\mathrm{XeF}}_4$

   

• ${\mathrm{SF}}_4$

   

• ${\mathrm{XeF}}_2$

   

Q 18 :

Given below are two statements:                                                     [2025]

Statement (I): For $\underset{\bullet \bullet }{\stackrel{\bullet \bullet }{C}}l{F}_3$, all three possible structures may be drawn as follows.

Statement (II): Structure III is most stable, as the orbitals having the lone pairs are axial, where the $lp–bp$ repulsion is minimum.

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.

   

• Statement I is correct but statement II is incorrect.

   

• Both Statement I and Statement II are correct.

   

• Both Statement I and Statement II are incorrect.

   

Q 19 :

Match the LIST-I with LIST-II.                                         [2025]

	List-I		List-II
	Molecule/ion		Bond pair : lone pair (on the central atom)
A.	${\mathrm{ICl}}_2^{-}$	I.	4 : 2
B.	${\mathrm{H}}_2\mathrm{O}$	II.	4 : 1
C.	${\mathrm{SO}}_2$	III.	2 : 3
D.	${\mathrm{XeF}}_4$	IV.	2 : 2

 

Choose the correct answer from the options given below:

• A-IV, B-III, C-II, D-I

   

• A-III, B-IV, C-II, D-I

   

• A-III, B-IV, C-I, D-II

   

• A-II, B-I, C-IV, D-III

   

Q 20 :

In ${\mathrm{SO}}_2$, ${\mathrm{NO}}_2^{-}$ and ${\mathrm{N}}_3^{-}$ the hybridizations at the central atom are respectively:                        [2025]
 

• $s{p}^2,s{p}^2$ and $sp$

   

• $s{p}^2,sp$ and $sp$

   

• $s{p}^2,s{p}^2$ and $s{p}^2$

   

• $sp,s{p}^2$ and $sp$

   

Q 21 :

The number of molecules/ions that show linear geometry among the following is ______.

${\text{SO}}_2, {\text{BeCl}}_2, {\text{CO}}_2, {\text{N}}_3^{-}, {\text{NO}}_2, {\text{F}}_2\text{O}, {\text{XeF}}_2, {\text{NO}}_2^{+}, {\text{I}}_3^{-}, {\text{O}}_3$                    [2025]
 

Q 22 :

For ${\mathrm{OF}}_2$ molecule consider the following:

A. Number of lone pairs on oxygen is 2.

B. FOF angle is less than 104.5°.

C. Oxidation state of O is –2.

D. Molecule is bent ‘V’ shaped.

E. Molecular geometry is linear.

Correct options are:                                         [2023]

• A, C, D only

   

• C, D, E only

   

• B, E, A only

   

• A, B, D only

   

Q 23 :

Match List I with List II.                      [2023]

	List I		List II
A.	${\mathrm{XeF}}_4$	I.	See-saw
B.	${\mathrm{SF}}_4$	II.	Square planar
C.	${\mathrm{NH}}_4^{+}$	III.	Bent T-shaped
D.	${\mathrm{BrF}}_3$	IV.	Tetrahedral

 

Choose the correct answer from the options given below:

• A – IV, B – I, C – II, D – III

   

• A – II, B – I, C – III, D – IV

   

• A – II, B – I, C – IV, D – III

   

• A – IV, B – III, C – II, D – I

   

Q 24 :

Match List-I with List-II:                    [2023]

	List I Species		List II Geometry/Shape
A.	${\mathrm{H}}_3{\mathrm{O}}^{+}$	I.	Tetrahedral
B.	Acetylide anion	II.	Linear
C.	${\mathrm{NH}}_4^{+}$	III.	Pyramidal
D.	${\mathrm{ClO}}_2^{-}$	IV.	Bent

 

Choose the correct answer from the options given below:

• A – III, B – IV, C – I, D – II

   

• A – III, B – IV, C – II, D – I

   

• A – III, B – I, C – II, D – IV

   

• A – III, B – II, C – I, D – IV

   

Q 25 :

Given below are two statements:

Statement I: ${\mathrm{SO}}_2$ and ${\mathrm{H}}_2\mathrm{O}$ both possess V-shaped structure.

Statement II: The bond angle of ${\mathrm{SO}}_2$ is less than that of ${\mathrm{H}}_2\mathrm{O}$.  

In the light of the above statements, choose the most appropriate answer from the options given below:        [2023]

• Statement I is incorrect but Statement II is correct

   

• Statement I is correct but Statement II is incorrect

   

• Both Statement I and Statement II are correct

   

• Both Statement I and Statement II are incorrect

   

Q 26 :

Match List I with List II.                     [2023]

	List I (molecules/ions)		List II (No. of lone pairs of ${\mathrm{e}}^{-}$ on central atom)
A.	${\mathrm{IF}}_7$	I.	Three
B.	${\mathrm{ICI}}_4^{-}$	II.	One
C.	${\mathrm{XeF}}_6$	III.	Two
D.	${\mathrm{XeF}}_2$	IV.	Zero

 

Choose the correct answer from the options given below:

• A – IV, B – I, C – II, D – III

   

• A – II, B – I, C – IV, D – III

   

• A – II, B – III, C – IV, D – I

   

• A – IV, B – III, C – II, D – I

   

Q 27 :

The total number of lone pair of electrons on oxygen atoms of ozone is ________.               [2023]

Q 28 :

The number of molecules or ions from the following, which do not have odd number of electrons are ________.     [2023]

(A) ${\mathrm{NO}}_2$                     (B) ${\mathrm{ICl}}_4^{-}$

(C) ${\mathrm{BrF}}_3$                     (D) ${\mathrm{ClO}}_2$

(E) ${\mathrm{NO}}_2^{+}$                     (F) NO

Q 29 :

Amongst the following, the number of species having the linear shape is ________.       [2023]

${\mathrm{XeF}}_2,{\mathrm{I}}_3^{+},{\mathrm{C}}_3{\mathrm{O}}_2,{\mathrm{I}}_3^{-},{\mathrm{CO}}_2,{\mathrm{SO}}_2,{\mathrm{BeCl}}_2 \text{and} {\mathrm{BCl}}_2^{⊝}$

Q 30 :

The number of species from the following which have square pyramidal structure is _______.

${\mathrm{PF}}_5,{\mathrm{BrF}}_4^{-},{\mathrm{IF}}_5,{\mathrm{BrF}}_5,{\mathrm{XeOF}}_4,{\mathrm{ICl}}_4^{-}$                       [2023]