Quiz for General Organic Chemistry (GOC)

Q1: Which of the following is a nucleophile?

A. H₂O B. H⁺ C. NO₂⁺ D. BF₃

Q2: Which of the following is the most stable carbocation?

A. CH₃⁺ B. CH₃CH₂⁺ C. (CH₃)₃C⁺ D. CH₂=CH⁺

Q3: What type of species is Cl⁻?

A. Electrophile B. Nucleophile C. Free radical D. None

Q4: Which of the following has the strongest +I effect?

A. -CH₃ B. -C₂H₅ C. -NO₂ D. -OH

Q5: Which one is the weakest acid?

A. CH₃COOH B. CCl₃COOH C. HCOOH D. CH₃CH₂COOH

Q6: Which is the correct order of basicity?

A. CH₃NH₂ > NH₃ > (CH₃)₂NH B. NH₃ > CH₃NH₂ > (CH₃)₂NH C. (CH₃)₂NH > CH₃NH₂ > NH₃ D. NH₃ > (CH₃)₂NH > CH₃NH₂

Q7: Resonance is not possible in which compound?

A. Phenol B. Aniline C. Toluene D. Cyclohexane

Q8: Which of the following is a free radical?

A. CH₄ B. CH₃⁻ C. CH₃• D. CH₃⁺

Q9: Which hybridization is shown by the carbon atom in carbocation CH₃⁺?

A. sp B. sp² C. sp³ D. None

Q10: Electrophiles are:

A. Electron-rich species B. Electron-deficient species C. Neutral D. None of these

Q11: Which is more stable?

A. Allyl radical B. Methyl radical C. Ethyl radical D. Vinyl radical

Q12: Which of the following shows +M effect?

A. -NO₂ B. -OH C. -COOH D. -CN

Q13: What is the order of acidity?

A. H₂O < HF < HCl B. HF < HCl < H₂O C. HCl < HF < H₂O D. H₂O < HCl < HF

Q14: Which of the following is an example of inductive effect?

A. Resonance in benzene B. Acidity of carboxylic acid C. Basicity of amines D. Polarization in alkyl halides

Q15: Which has highest nucleophilicity?

A. H₂O B. CH₃O⁻ C. OH⁻ D. CH₃OH

Q16: Which order of reactivity is correct in SN1 reactions?

A. 3° > 2° > 1° B. 1° > 2° > 3° C. 2° > 3° > 1° D. 1° > 3° > 2°

Q17: Which group shows -I and -M effects?

A. -NO₂ B. -OH C. -NH₂ D. -CH₃

Q18: Which species is most stable?

A. CH₃⁺ B. CH₃⁻ C. CH₃• D. C₂H₅⁺

Q19: What is the order of electronegativity?

A. N > O > F B. O > F > N C. F > O > N D. F > N > O

Q20: Hyperconjugation involves:

A. σ to π* donation B. π to σ* donation C. σ to p overlap D. π to p overlap