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 )

Step-by-step solution

Benzene HNO₃/H₂SO₄ Nitrobenzene (P) Sn/HCl Aniline (Q) (CH₃CO)₂O Acetanilide (R) R HNO₃/H₂SO₄ p-Nitroacetanilide (S) HCl/EtOH, p-Nitroaniline (T) T = p-Nitroaniline ( O₂N-C₆H₄-NH₂ ), molecular formula C₆H₆N₂O₂ 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