Selected MCQ

Current Question
Which compound shows isomerism?
  • A. CH₄
  • B. C₂H₆
  • C. C₄H₁₀
  • D. CO₂
Correct Answer: C
Explanation:
Butane has structural isomers.
Related Question 1
Which wave shows polarization?
  • A. Sound
  • B. Light
  • C. Water
  • D. Seismic
Correct Answer: B
Explanation:
Only transverse waves polarize.
Related Question 2
Which rock shows banding?
  • A. Granite
  • B. Basalt
  • C. Gneiss
  • D. Limestone
Correct Answer: C
Explanation:
Gneiss has distinct layers.
Related Question 3
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 4
Which compound has trigonal planar geometry?
  • A. NH₃
  • B. CH₄
  • C. BF₃
  • D. H₂O
Correct Answer: C
Explanation:
BF₃ is sp² hybridized.
Related Question 5
Which wave shows diffraction?
  • A. Light
  • B. Sound
  • C. Water
  • D. All
Correct Answer: D
Explanation:
All waves diffract.