Are you preparing for upcoming NEET exam? You have made it to the most helpful website JEET MCQ. We provide you educational material to support your preparation journey. 

In this article, we will be sharing with you 30 most probable questions from class 11 chapter 4 "Chemical Bonding" for the upcoming NEET exam. We have also provided answer key to match your answers and detailed explanation to solve all your doubts. 

For chapter-wise MCQ questions, visit the following links: 

• Biology MCQ Questions
• Chemistry MCQ Questions
• Physics MCQ Questions
• Mathematics MCQ Questions

Questions

1. The hybrid state of S in SO₃ is similar to that of
a) C in C₂H₂
b) C in C₂H₄
c) C in CH₄
d) C in CO₂

2. The hydration energy of Mg²⁺ is larger than that of:
a) Al³⁺
b) Na⁺
c) Be²⁺
d) None of these

3. Number of lone pair (s) in XeOF₄ is/are
a) 0
b) 1
c) 2
d) 3

4. Van der Waals’ forces between molecules depend upon:
a) Number of electrons
b) Charge on nucleus
c) Radius of atoms
d) All of these

5. XeF₆ is:
a) Octahedral
b) Pentagonal pyramidal
c) Planar
d) tetrahedral

6. The bond order in NO is 2.5 while that in NO⁺ is 3. Which of the following statements is true for these two species?
a) Bond length in NO⁺ is greater than in NO
b) Bond length in NO is greater than in NO⁺
c) Bond length in NO⁺ is equal to than in NO
d) Bond length is unpredictable

7. An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is:
a) 11
b) 16
c) 18
d) 10

8. Which has the largest distance between the carbon hydrogen atom?
a) Ethane
b) Ethene
c) Ethyne
d) Benzene

9. Length of hydrogen bond ranges from 2.5Å to:
a) 3.0 Å
b) 2.75 Å
c) 2.6 Å
d) 3.2 Å

10. If H-X bond length is 2.00 Å and H-X bond has dipole moment 5.12×10^-30 C-m,
the percentage of ionic character in the molecule will be
a) 10%
b) 16%
c) 18%
d) 20%

11. Which molecule is planar?
a) NH₃
b) CH₄
c) C₂H₄
d) SiCl₄

12. From the molecular orbital theory, one can show that the bond order in F₂ molecule as
a) 2
b) 1
c) 3
d) 4

13. Two ice cubes are pressed over each other until they unite to form one block. Which one of the following forces dominates for holding them together?
a) Dipole-dipole interaction
b) Van der Waals’ forces
c) Hydrogen bond formation
d) Covalent attraction

14. Maximum number of covalent bonds between two like atoms can be:
a) Three
b) Two
c) Four
d) One

15. When sodium and chlorine react, energy is:
a) Released and ionic bond is formed
b) Released and covalent bond is formed
c) Absorbed and covalent bond is formed
d) Absorbed and ionic bond is formed

16. The maximum possible number of hydrogen bonds is a H₂ O molecule can participate is
a) 1
b) 2
c) 3
d) 4

17. The element having lowest ionization energy among the following is:
a) 1s², 2s², 2p³
b) 1s², 2s², 2p⁶, 3s¹
c) 1s², 2s², 2p⁶
d) 1s², 2s², 2p⁵

18. Bond energies in NO, NO⁺ and NO^- are such as
a) NO^->NO>NO⁺
b) NO>NO^->NO⁺
c) NO⁺>NO>NO^-
d) NO⁺>NO^->NO

19. Two type FXF angles are present in which of the following molecules? (X=S, Xe, C)
a) SF₄
b) XeF₄
c) SF₆
d) CF₄

20. The bond angle between two hybrid orbitalsis 105°. The percentage of s-character of hybrid orbital is between
a) 50-55%
b) 9-12%
c) 22-23%
d) 11-12%

21. Which is electron deficient compound?
a) C₂H₄
b) B₂H₆
c) C₂H₆
d) NaBH₄

22. CCl₄ is insoluble in water because:
a) CCl₄ is non-polar and water is polar
b) Water is non-polar and CCl₄ is polar
c) Water and CCl₄ both are polar
d) None of the above

23. Which of the following is not correct regarding the properties of ionic compounds?
a) Ionic compounds have high metling and boiling points
b) Their reaction velocity in aqueous medium is very high
c) Ionic compounds in their molten and aqueous solutions do not conduct electricity
d) They are highly soluble in polar solvents

24. The number of sigma and pi (π) bonds present in benzene respectively are
a) 12, 6
b) 6, 6
c) 6, 12
d) 12, 3

25. Which of the following is not tetrahedral?
a) BF₄^-
b) NH₄⁺
c) CO₃^2-
d) SO₄^2-

26. In PCl₅ molecule, P is:
a) sp³-hybridized
b) dsp²-hybridized
c) ds³p-hybridized
d) sp³d-hybridized

27. The bond angle and % of d-character in SF₆ are
a) 120°, 20%
b) 90°, 33%
c) 109°, 25%
d) 90°, 25%

28. Linear combination of two hybridized orbitals, belonging to two atoms and each having one electron leads to:
a) Sigma-bond
b) Double bond
c) Coordinate covalent bond
d) Pi-bond

29. In allene structure, three carbon atoms are joined by:
a) Three σ-and three π-bonds
b) Two σ- and one π-bond
c) Two σ-and two π-bonds
d) Three π-bonds only

30. Geometry of SiO₄^4- anion is
a) Tetrahedral
b) Trigonal
c) Trihedral
d) Pentagonal

Answers

1. b	2. b	3. b	4. d	5. b
6. b	7. b	8. a	9. b	10. b
11. c	12. b	13. c	14. a	15. a
16. d	17. b	18. c	19. a	20. c
21. b	22. a	23. c	24. d	25. c
26. d	27. b	28. a	29. c	30. a

Solutions

1 (b)
Molecule Hybridization

2 (b)
Mg²⁺ is smaller than Na⁺ and thus, smaller is cation more is hydration energy.

3 (b)
Number of lone pair in XeOF₄ is one (1). The structure of XeOF₄ is given as follows :

One π-bond so remaining six electron pairs form an octahedron with one position occupied by a lone pair.

4 (d)
These are the factors on which van der Waals’ forces depend.

5 (b)
It has sp³ d³-hybridization with one lone pair on Xe.

6 (b)
Bond order ∝ 1/(Bond length)
BO of NO < BO of NO⁺
∴ Bond length of NO is greater than the bond length of NO⁺.

7 (b)
Element with atomic number 20 is metal (Ca); it will combine with non-metal.

8 (a)
A decrease in s-character increases bond length.

10 (b)

11 (c)
C₂ H₄ involves sp²-hybridization on carbon atoms.

12 (b)
According to molecular orbital theory.

15 (a)
Bond formation is always exothermic. Compounds of sodium are ionic.

16 (d)
In case of water, five water molecules are attached together through four hydrogen bonding

17 (b)
Removal of electron is easier in the order of shell 4 > 3 > 2 > 1

18 (c)
Bond order of NO⁺, NO and NO^- are 3, 2.5 and 2 respectively.
Bond energy ∝ bond order.

19 (a)
FXF angles of two types are present in sp³ d hybrid orbitals. Since, SF₄ shows sp³ d hybridisation as follows, therefore, it exhibits two different FXF angles. 

20 (c)
s-character ∝ bond angle
For 25% s-character (as in sp³hybrid orbital), bond angle is 109.5°, for 33.3% s character (as in sp² hybrid orbital), bond angle is 120° and for 50% s character (as in sp hybrid orbital ), bond angle is 180°.
Similarly, when the bond angle decreases below 1.9.5°,thes-character will decrease accordingly
Decreasing in angle =120°-109.5°=10.5°
∴ Decrease in s-character =33.3-25=8.3
Actual decrease in bond angle =109.5°-105°=4.5°
∴ Expected decrease in s-character
=8.3/10.5×4.5=3.56%
Thus, the s-character should decrease by about 3.56%, ie, s-character =25-3.56=21.44%

21 (b)
B has only six electron in B₂H₆.

22 (a)
Like gets dissolved in like. It is theory.

23 (c)
Ionic compounds are good conductor of electricity in molten or in solution state. However, they are bad-conductor in solid state.

24 (d)
In benzene 12σ and 3π bonds are present. The structure of benzene is 

25 (c)
In CO₃^2- ion the C-atom undergoes sp²-hybridisation. It has triangular planar structure. While BF₄^-, NH₄⁺ and SO₄^2-have tetrahedral structure.

26 (d)
PCl₅ has trigonal bipyramid geometry.

27 (b)
SF₆ has octahedral geometry, sp³d² hybridisation and bond angle is 90°


=33%
So, SF₆ are bond angle = 90°
andd-character = 33%.

28 (a)
Head on overlapping give rise to σ-bond formation.

29 (c)
Alleneis H₂C=C=CH₂.

30 (a)
Silicate ion (SiO₄^4-) is the basic structural unit of silicates. Silicates are metal derivatives of silicic acid. 

For more chapterwise mcq questions for NEET exam, you can explore our website. Thanks for visiting, have a nice day.