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Amines · Question 5

JEE Main 2026 (Online) 6th April Evening ShiftMCQHard📈 Topic in 26% papers+4−1
1

The number of compounds from the following which can undergo reaction with Br2/KOH (alcoholic) to give respective products and these respective products can also be obtained separately by Gabriel phthalimide reaction is : [figure]

  1. 5
  2. 4
  3. 3
  4. 6

Answer

(3) 3

Solution

Hofmann bromamide degradation works only for primary amides (R-CONH2) and gives R-NH2 (one carbon less). The N-substituted amides C6H11CONHCH2CH3 and (CH3)3CCONHCH3 do not react.

Products of the four primary amides:

C6H5CONH2 C6H5NH2 (aniline): ✗ by Gabriel — as per NCERT, aryl halides do not undergo nucleophilic substitution with the phthalimide anion

C6H5CH2CONH2 C6H5CH2NH2 (benzylamine): ✓ (from benzyl chloride)

CH3CONH2 CH3NH2 (methanamine): ✓ (from methyl halide)

C6H11CONH2 C6H11NH2 (cyclohexanamine): ✓ (from cyclohexyl halide)

∴ Number of compounds = 3

Answer: (3)

JEE Main 2026 (Online) 6th April Evening Shift

Keep practising — Amines

2

Benzyl isocyanide can be obtained from Choose the correct answer from the options given below :

  1. A and B Only
  2. A and C Only
  3. B and D Only
  4. D and E Only
JEE Main 2026 (Online) 5th April Morning Shift
3

Identify the incorrect statements. Choose the correct answer from the options given below:

  1. A and D Only
  2. A and C Only
  3. B and C Only
  4. A and B Only
JEE Main 2026 (Online) 5th April Morning Shift
4

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
JEE Main 2026 (Online) 5th April Evening Shift
5

Product C of the following reaction sequence will be [figure]

  1. 1-Bromo-4-nitrobenzene
  2. 1, 3, 5-Tribromo-2-nitrobenzene
  3. 4-Bromo-1-nitrobenzene
  4. 1, 3, 5-Tribromobenzene
JEE Main 2026 (Online) 4th April Morning Shift
6

For the given molecule, "x", the preferred site for the attack of the electrophile is : [figure]

  1. Predominantly at "r"
  2. "r" and "u"
  3. "p" and "s"
  4. Predominantly at "u"
JEE Main 2026 (Online) 2nd April Morning Shift
7

Consider the three aromatic molecules (P, Q and R) whose structures have been given below : [figure] The correct order regarding the reactivity of these compounds with Ph- N N Cl under optimum but slightly acidic medium is :

  1. P > Q > R
  2. R > P > Q
  3. R > Q > P
  4. P > R > Q
JEE Main 2026 (Online) 2nd April Morning Shift
8

Identify compounds A and E in the following reaction sequence. [figure]

  1. A = [figure] E = [figure]
  2. A = [figure] E = [figure]
  3. A = [figure] E = [figure]
  4. A = [figure] E = [figure]
JEE Main 2026 (Online) 2nd April Evening Shift
9

Consider the following reactions sequence [figure] When the product (P) is subjected to Carius analysis using AgNO3, 1.0 g of the product (P) will produce g of the precipitate of AgBr. (Nearest Integer) (Given : molar mass in g mol-1 C : 12, H : 1, O : 16, N : 14, Br : 80, Ag : 108)

JEE Main 2026 (Online) 2nd April Evening Shift
10

Consider the following reactions giving major product. Identify the correct reaction.

  1. [figure]
  2. [figure]
  3. [figure]
  4. H3CCH2- O \|C-NH2 + Br2 + 4 KOH (alc) H3CCH2NH2 + 2KBr + K2CO3 + 2H2O
JEE Main 2026 (Online) 28th January Morning Shift
11

A student performed analysis of an aliphatic organic compound 'X' which on analysis gave C = 61.01%, H = 15.25%, N = 23.74%. This compound, on treatment with HNO2/H2O, produced another compound 'Y' which did not contain any nitrogen atom. However, the compound 'Y' upon controlled oxidation produced another compound 'Z' that responded to iodoform test. The structure of 'X' is :

  1. CH3-CH2CH(NH2)-CH3
  2. CH3CH2CH2NH2
  3. Ph-CH(CH3)-NH2
  4. [figure]
JEE Main 2026 (Online) 28th January Evening Shift

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