Consider the following sequence of reactions. The percentage of nitrogen in the yellow product (X) formed is _______%. (Nearest Integer) (Given Molar mass in g mol ⁻¹ H:1, C:12, N:14)

Step-by-step solution

The given starting material is diazoaminobenzene ( C₆H₅-N=N-NH-C₆H₅ ). When diazoaminobenzene is treated with an acid catalyst (HCl) and excess aniline, and warmed to 40-45^ C , it undergoes a rearrangement reaction (or dissociation followed by coupling) to form p -aminoazobenzene. The reaction sequence is as follows: 1. Diazoaminobenzene reacts with HCl to form benzenediazonium chloride and aniline. 2. The benzenediazonium ion then couples with the excess aniline at the para position to yield p -aminoazobenzene. 3