Sandmeyer reaction

Organic Reagents MCQs (NEET/JEE Practice) set 1/level NCERT

This question set is designed to strengthen key concepts of Organic Chemistry, especially reactions involving amines, diazonium salts, and important named reactions frequently asked in NEET and JEE. It covers a wide range of reagent-based transformations to help students improve accuracy and reaction recognition skills. Practice these questions regularly to build a strong conceptual foundation and boost exam confidence

1.

Nitrile on reduction gives:
A) Alcohol
B) Aldehyde
C) Primary amine
D) Secondary amine

2.

Amide + Br₂/NaOH gives:
A) Same carbon amine
B) One carbon higher amine
C) One carbon lower amine
D) Alcohol

3.

Which reagent converts alkyl halide to nitrile?
A) KOH
B) AgCN
C) KCN
D) NH₃

4.

Reduction of isocyanide gives:
A) Primary amine
B) Secondary amine
C) Tertiary amine
D) Alcohol

5.

Nitrile hydrolysis produces:
A) Alcohol
B) Aldehyde
C) Carboxylic acid
D) Amine

6.

Carboxylic acid reacts with NH₃ to give:
A) Ester
B) Amide
C) Amine
D) Nitrile

7.

Primary amine + HNO₂ gives:
A) Alkene
B) Alcohol
C) Nitrile
D) Amide

8.

Aniline + HNO₂ (0–5°C) forms:
A) Nitrobenzene
B) Diazonium salt
C) Phenol
D) Benzene

9.

C₆H₅N₂⁺Cl⁻ + KI gives:
A) Chlorobenzene
B) Bromobenzene
C) Iodobenzene
D) Fluorobenzene

10.

Sandmeyer reaction involves:
A) HNO₃
B) Cu salts
C) KMnO₄
D) NaBH₄

11.

C₆H₅N₂Cl + H₂O (warm) gives:
A) Benzene
B) Phenol
C) Aniline
D) Nitrobenzene

12.

C₆H₅N₂Cl + H₃PO₂ gives:
A) Phenol
B) Benzene
C) Aniline
D) Chlorobenzene

13.

C₆H₅N₂Cl + HBF₄ / heat gives:
A) Chlorobenzene
B) Bromobenzene
C) Fluorobenzene
D) Iodobenzene

14.

LiAlH₄ reduces CH₃COOH to:
A) Aldehyde
B) Primary alcohol
C) Ketone
D) Secondary alcohol

15.

Aldehyde reduction gives:
A) Secondary alcohol
B) Primary alcohol
C) Ketone
D) Acid

16.

Ketone reduction gives:
A) Primary alcohol
B) Secondary alcohol
C) Tertiary alcohol
D) Acid

17.

Carbylamine test is given by:
A) Primary amine
B) Secondary amine
C) Tertiary amine
D) Amide

18.

Aniline + Br₂/H₂O gives:
A) Monobromo
B) Dibromo
C) 2,4,6-tribromoaniline
D) No reaction

19.

Aniline nitration gives mainly:
A) Meta product
B) Ortho + para + some aniline
C) Only para
D) Only ortho

20.

Aniline + acetic anhydride forms:
A) Benzamide
B) Acetanilide
C) Nitrobenzene
D) Phenol

21.

Acetanilide + Br₂/CH₃COOH gives:
A) Ortho product
B) Para product
C) Meta product
D) Mixture

22.

Gabriel phthalimide synthesis gives:
A) Primary amine
B) Secondary amine
C) Tertiary amine
D) Amide

23.

Nitrile partial hydrolysis gives:
A) Acid
B) Amide
C) Amine
D) Alcohol

24.

Aniline + conc. H₂SO₄ gives:
A) Nitrobenzene
B) Sulphanilic acid
C) Phenol
D) Benzene

25.

Coupling reaction of diazonium salt gives:
A) Alcohol
B) Azo dye
C) Acid
D) Alkene

Answers:

1-C, 2-C, 3-C, 4-B, 5-C, 6-B, 7-B, 8-B, 9-C, 10-B, 11-B, 12-B, 13-C, 14-B, 15-B, 16-B, 17-A, 18-C, 19-B, 20-B, 21-B, 22-A, 23-B, 24-B, 25-B