Organic Chemistry – Basic Principles – Multiple Choice Questions (MCQs)

1. 1. Q1: Which of the following is a nucleophile?

   • A. H+
   • B. Cl-
   • C. NO2+
   • D. SO3

2. 2. Q2: Hybridization of carbon in ethene is:

   • A. sp
   • B. sp2
   • C. sp3
   • D. sp3d

3. 3. Q3: Which of the following statements is correct for inductive effect?

   • A. It involves delocalization of electrons
   • B. It is a permanent effect
   • C. It operates through space
   • D. It is a temporary effect

4. 4. Q4: Which of the following can show hyperconjugation?

   • A. Methane
   • B. Ethane
   • C. Propene
   • D. Ethyne

5. 5. Q5: The bond angle in methane is:

   • A. 90°
   • B. 109.5°
   • C. 120°
   • D. 180°

6. 6. Q6: Hybridization of carbon in ethene is:

   • A. sp
   • B. sp2
   • C. sp3
   • D. sp3d

7. 7. Q7: Which of the following is not an electrophile?

   • A. BF3
   • B. NO2+
   • C. AlCl3
   • D. NH3

8. 8. Q8: The resonance effect involves:

   • A. Inductive effect
   • B. Delocalization of electrons
   • C. Charge separation
   • D. Only sigma bonds

9. 9. Q9: Which of the following is a nucleophile?

   • A. H+
   • B. Cl-
   • C. NO2+
   • D. SO3

10. 10. Q10: Hybridization of carbon in ethene is:

    • A. sp
    • B. sp2
    • C. sp3
    • D. sp3d

11. 11. Q11: Which of the following can show hyperconjugation?

    • A. Methane
    • B. Ethane
    • C. Propene
    • D. Ethyne

12. 12. Q12: Which of the following is the correct IUPAC name for CH3-CH2-CH2OH?

    • A. Propanol
    • B. Butanol
    • C. Ethanol
    • D. Methanol