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JEE Main Chemistry Amines 2026 JEE Main 2026 (21 January Shift 1)

JEE Main Chemistry Question (2026) — Solution

Question

Consider the following reaction sequence 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)

Options

  1. A. A
  2. B. B
  3. C. C
  4. D. D

Answer

A. A

Step-by-step solution

Benzene HNO_3/H_2SO_4 Nitrobenzene (P) Sn/HCl Aniline (Q) (CH_3CO)_2O Acetanilide (R) R HNO_3/H_2SO_4 p-Nitroacetanilide (S) HCl/EtOH, p-Nitroaniline (T) T = p-Nitroaniline (O_2N-C_6H_4-NH_2), molecular formula C_6H_6N_2O_2 Molar mass = 6(12) + 6(1) + 2(14) + 2(16) = 72 + 6 + 28 + 32 = 138 g/mol % N = 28 138 100 = 20.29\% Nearest integer = 20

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