Chapter 4: Chemical Bonding and Molecular Structure — Online MCQ Test
CHEMISTRY · Grade 11 · CBSE(NCERT)
Practice Chapter 4: Chemical Bonding and Molecular Structure with a free chapter-wise online MCQ test.
This chapter covers: Ionic bond Covalent bond Coordinate bond VSEPR theory Hybridization Molecular orbital theory Sigma bond Pi bond Dipole moment Hydrogen bonding.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter 4: Chemical Bonding and Molecular Structure — Important Questions & Answers
Which type of bond is formed by complete transfer of electrons from one atom to another?
- A. Covalent bond
- B. Ionic bond
- C. Coordinate bond
- D. Hydrogen bond
Answer: B. Ionic bond
In an ionic bond, one atom transfers electron(s) to another, producing oppositely charged ions that attract each other.
In an ionic bond, one atom transfers electron(s) to another, producing oppositely charged ions that attract each other.
The number of covalent bonds formed by carbon in methane (CH4) is:
- A. 1
- B. 2
- C. 3
- D. 4
Answer: D. 4
Carbon forms four single covalent bonds in methane, satisfying its octet.
Carbon forms four single covalent bonds in methane, satisfying its octet.
Which of the following best describes a covalent bond?
- A. Electrostatic attraction between ions
- B. Sharing of electron pair(s)
- C. Donation of proton
- D. Attraction between molecules only
Answer: B. Sharing of electron pair(s)
A covalent bond is formed when atoms share one or more pairs of electrons.
A covalent bond is formed when atoms share one or more pairs of electrons.
The bond angle in water is less than 109.5° mainly because of:
- A. Two lone pairs on oxygen
- B. One lone pair on oxygen
- C. Resonance in water
- D. Presence of pi bonds
Answer: A. Two lone pairs on oxygen
Two lone pairs on oxygen exert strong repulsion, compressing the H-O-H bond angle to about 104.5°.
Two lone pairs on oxygen exert strong repulsion, compressing the H-O-H bond angle to about 104.5°.
Which option correctly matches the shape and hybridization of the central atom in XeF4?
- A. Tetrahedral, sp3
- B. Square planar, sp3d2
- C. Trigonal bipyramidal, sp3d
- D. Linear, sp
Answer: B. Square planar, sp3d2
XeF4 has four bond pairs and two lone pairs around xenon, giving square planar shape with sp3d2 hybridization.
XeF4 has four bond pairs and two lone pairs around xenon, giving square planar shape with sp3d2 hybridization.