Selected MCQ

Current Question
Which compound is most polar?
  • A. CO₂
  • B. CH₄
  • C. NH₃
  • D. BF₃
Correct Answer: C
Explanation:
NH₃ has net dipole moment.
Related Question 1
Which compound is most soluble in water?
  • A. Benzene
  • B. NaCl
  • C. CH₄
  • D. CCl₄
Correct Answer: B
Explanation:
Ionic compounds dissolve well.
Related Question 2
Which compound is most acidic?
  • A. Phenol
  • B. Ethanol
  • C. Methane
  • D. Ethene
Correct Answer: A
Explanation:
Phenol stabilizes conjugate base via resonance.
Related Question 3
Which wave shows polarization?
  • A. Sound
  • B. Light
  • C. Water
  • D. Seismic
Correct Answer: B
Explanation:
Only transverse waves polarize.
Related Question 4
Which factor increases acidity of organic compounds?
  • A. Electron donating groups
  • B. Electron withdrawing groups
  • C. Alkyl substitution
  • D. Decreasing electronegativity
Correct Answer: B
Explanation:
Electron-withdrawing stabilizes conjugate base.
Related Question 5
Which compound has trigonal planar geometry?
  • A. NH₃
  • B. CH₄
  • C. BF₃
  • D. H₂O
Correct Answer: C
Explanation:
BF₃ is sp² hybridized.