Selected MCQ

Current Question
Which bond is strongest?
  • A. Ionic
  • B. Hydrogen
  • C. Covalent
  • D. Van der Waals
Correct Answer: C
Explanation:
Covalent bonds involve electron sharing.
Related Question 1
Which species shows strongest hydrogen bonding?
  • A. NH₃
  • B. H₂O
  • C. HF
  • D. CH₄
Correct Answer: C
Explanation:
HF has highly polar H–F bond and strong intermolecular attraction.
Related Question 2
Which bond involves delocalized electrons?
  • A. Ionic
  • B. Covalent
  • C. Metallic
  • D. Hydrogen
Correct Answer: C
Explanation:
Metallic bonding has electron sea.
Related Question 3
In molecular orbital theory, antibonding orbitals have:
  • A. Lower energy
  • B. Higher energy
  • C. Same energy
  • D. Zero energy
Correct Answer: B
Explanation:
Antibonding orbitals destabilize molecule.
Related Question 4
Which bond is metallic?
  • A. Electron sharing
  • B. Electron transfer
  • C. Electron sea
  • D. Hydrogen bonding
Correct Answer: C
Explanation:
Metallic bonding involves delocalized electrons.
Related Question 5
Which bond has partial ionic character?
  • A. Nonpolar covalent
  • B. Polar covalent
  • C. Metallic
  • D. Hydrogen
Correct Answer: B
Explanation:
Polar covalent bonds share electrons unequally.