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Amines · Question 10

JEE Main 2026 (Online) 2nd April Morning ShiftMCQMedium📈 Topic in 42% papers+4−1
1

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"

Answer

(4) Predominantly at "u"

Solution

x is benzanilide, C6H5CO-NH-C6H5.

Ring bearing p and r (benzoyl ring): attached to C=O, an electron-withdrawing group ⇒ this ring is deactivated (and C=O is meta directing), so p and r are not preferred.

Ring bearing s and u (anilide ring): attached to N, whose lone pair is donated into the ring by resonance ⇒ this ring is activated and ortho/para directing.

(The lone pair is also shared with C=O, so activation is moderate — just as in acetanilide.)

s is ortho and u is para to –NHCOPh. ∵ –NHCOPh is a bulky group, attack at the ortho position s is sterically hindered.

As per NCERT, acetanilide on bromination gives p-bromoacetanilide as the major product; in the same way here

∴ the electrophile attacks predominantly at the para position u.

Answer: (4)

JEE Main 2026 (Online) 2nd April Morning Shift

Keep practising — Amines

2

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
3

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
4

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
5

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
6

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
7

Total number of alkali-insoluble solid sulphonamides obtained by reaction of given amines with Hinsberg's reagent is . Aniline, N-Methylaniline, Methanamine, N,N-Dimethylmethanamine, N-Methylmethanamine, Phenylmethanamine, N-Propylaniline, N-Phenylaniline, N,N-Dimethylaniline, Allylamine, Isopropylamine

  1. 8
  2. 5
  3. 2
  4. 4
JEE Main 2026 (Online) 28th January Evening Shift
8

The correct stability order of the following diazonium salts is [figure]

  1. C > D > B > A
  2. A > C > D > B
  3. A > B > C > D
  4. C > A > D > B
JEE Main 2026 (Online) 24th January Morning Shift
9

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 false
  2. Statement I is false but Statement II is true
  3. Statement I is true but Statement II is false
  4. Both Statement I and Statement II are true
JEE Main 2026 (Online) 24th January Evening Shift
10

Consider the following sequence of reactions. [figure] Assuming that the reaction proceeds to completion, then 137 mg of 4-nitrotoluene will produce mg of B. (Given molar mass in g mol-1 H : 1, C : 12, N : 14, O : 16, Br : 80)

  1. 208
  2. 228
  3. 146
  4. 301
JEE Main 2026 (Online) 23rd January Morning Shift
11

Compound 'P' undergoes the following sequence of reactions : [figure] 'P' is :

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
JEE Main 2026 (Online) 23rd January Morning Shift

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