JEE Main 2026 — Jan 21, Shift 1 — Chemistry solution

JEE Main2026Jan 21, Shift 1Chemistry

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)

Your answer

Solution

Benzene $\to$ nitrobenzene (P) $\to$ aniline (Q) $\to$ acetanilide (R) $\to$ p-nitroacetanilide (S) $\to$ p-nitroaniline (T).

T = $C_{6} H_{6} N_{2} O_{2}$ , molar mass $= 6 (12) + 6 (1) + 2 (14) + 2 (16) = 138$ g/mol.

$% N = (28/138) \times 100 = 20.29% \approx 20$ .

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