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Amines · Question 24

JEE Main 2026 (Online) 22nd January Evening ShiftMCQMedium📈 Topic in 26% papers+4−1
1

[figure] The final product [B] is :

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

Answer

(1) [figure]

Solution

Step 1 (benzoylation): the primary amine is acylated by benzoyl chloride; NaOH removes the HCl formed.

C6H11CH2NH2 + C6H5COCl NaOH C6H11CH2NHCOC6H5 + HCl

[A] = N-(cyclohexylmethyl)benzamide (an amide)

Step 2: LiAlH4 reduces the amide group -CO-NH- to -CH2-NH- (reduction of amides to amines):

C6H11CH2NHCOC6H5 [H2O]LiAlH4 C6H11CH2NHCH2C6H5

[B] is the secondary amine N-benzyl-1-cyclohexylmethanamine:

[figure]

Answer: (1)

JEE Main 2026 (Online) 22nd January Evening Shift

Keep practising — Amines

2

The mass of benzanilide obtained from the benzoylation reaction of 5.8 g of aniline, if yield of product is 82\%, is g (nearest integer). (Given molar mass in g mol-1 H : 1, C : 12, N : 14, O : 16)

JEE Main 2026 (Online) 22nd January Evening Shift
3

An organic compound (P) on treatment with aqueous ammonia under hot condition forms compound (Q) which on heating with Br2 and KOH forms compound (R) having molecular formula C6H7N. Names of P, Q and R respectively are.

  1. Toluic acid, methylbenzamide, 2-methylaniline
  2. Benzoic acid, benzamide, aniline
  3. Benzoic acid, 4-methylbenzamide, 4-methylaniline
  4. Phenylethanoic acid, phenylethanamide, benzamine
JEE Main 2026 (Online) 21st January Morning Shift
4

A hydrocarbon 'P' (C4H8) on reaction with HCl gives an optically active compound 'Q' (C4H9Cl) which on reaction with one mole of ammonia gives compound 'R' ( C4H11N). 'R' on diazotization followed by hydrolysis gives 'S'. Identify P, Q, R and S.

  1. P=CH3-CH=CH-CH3, Q=CH3-CH2-CH2-CH2-Cl, R=CH3-CH2-CH2- NH2 |CH2, S=CH3-CH2- OH |CH2 |CH2
  2. P=CH3-CH=CH-CH3, Q=CH3-CH2- Cl |CH-CH3, R=CH3-CH2- NH2 |CH-CH3, S=CH3-CH2- OH |CH-CH3
  3. P = [figure] , Q = [figure] , R = [figure] , S = [figure]
  4. P=CH3-CH2-CH=CH2, Q=CH3-CH2-CH2- Cl |CH2, R=CH3-CH2-CH2- CH3 |NH, S=CH3-CH2- OH | CH3 |CH
JEE Main 2026 (Online) 21st January Morning Shift
5

Consider the following reaction sequence [figure] The percentage of nitrogen in product 'T' formed is %. (Nearest integer) (Given molar mass in g mol-1 H : 1, C : 12, N : 14, O : 16)

JEE Main 2026 (Online) 21st January Morning Shift
6

[figure] Consider the above sequence of reactions. The number of bromine atom(s) in the final product (P) will be :

  1. 6
  2. 5
  3. 1
  4. 3
JEE Main 2026 (Online) 21st January Evening Shift
7

Which of the following amine(s) show(s) positive carbylamine test? Choose the correct answer from the options given below:

  1. C Only
  2. B, C and D Only
  3. A and E Only
  4. A and C Only
JEE Main 2025 (Online) 7th April Morning Shift
8

The descending order of basicity of the following amines is : Choose the correct answer from the options given below :

  1. E > A > D > C > B
  2. E > D > A > B > C
  3. E > D > B > A > C
  4. B > E > D > A > C
JEE Main 2025 (Online) 7th April Evening Shift
9

The major product (A) formed in the following reaction sequence is [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
JEE Main 2025 (Online) 4th April Morning Shift
10

Identify [A], [B] and [C], respectively in the following reaction sequence : [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
JEE Main 2025 (Online) 3rd April Morning Shift
11

In the following reactions, which one is NOT correct?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
JEE Main 2025 (Online) 3rd April Morning Shift

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