Valence Bond Theory MCQs

11. Valence Bond Theory is primarily applicable to:

• A) Ionic compounds
• B) Covalent compounds
• C) Metallic compounds
• D) Hydrogen-bonded compounds
• Answer: B

12. Which of the following is an example of a molecule with sp² hybridization?

• A) CH₄
• B) BF₃
• C) CO₂
• D) H₂O
• Answer: B

13. In Valence Bond Theory, delocalized electrons are:

• A) Confined to one atom
• B) Shared by several atoms
• C) Located between two specific atoms
• D) In the nucleus
• Answer: B

14. Which type of hybridization is seen in ethene (C₂H₄)?

• A) sp
• B) sp²
• C) sp³
• D) sp³d
• Answer: B

15. A triple bond consists of:

• A) Three sigma bonds
• B) Two sigma bonds and one pi bond
• C) One sigma bond and two pi bonds
• D) Three pi bonds
• Answer: C

16. Which molecule has sp hybridization?

• A) Ethyne (C₂H₂)
• B) Ethene (C₂H₄)
• C) Methane (CH₄)
• D) Water (H₂O)
• Answer: A

17. Sigma bonds are:

• A) Weaker than pi bonds
• B) Stronger than pi bonds
• C) Equal in strength to pi bonds
• D) Not found in covalent bonds
• Answer: B

18. Which orbital overlap is responsible for the formation of a sigma bond in HCl?

• A) s-s overlap
• B) s-p overlap
• C) p-p overlap
• D) p-d overlap
• Answer: B

19. Which of the following molecules contains both sigma and pi bonds?

• A) H₂
• B) N₂
• C) O₂
• D) F₂
• Answer: C

20. Which hybridization is seen in the central atom of water (H₂O)?

• A) sp²
• B) sp
• C) sp³
• D) sp³d
• Answer: C