PYQ Vault
EbooksTutor

Aniline yellow (p-aminoazobenzene): how it forms and what it contains

This type of question, asked 3 times: 2021 Paper 3, 2021 Paper 15, 6 Apr 2026 S1. All 3 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2021 Paper 3

    46
    Which of the following reaction/s will not give pp-aminoazobenzene? (A) Nitrobenzene: (i) Sn/HClSn/HCl, (ii) HNO2HNO_{2}, (iii) aniline (B) Nitrobenzene: (i) NaBH4NaBH_{4}, (ii) NaOHNaOH, (iii) aniline (C) Aniline: (i) HNO2HNO_{2}, (ii) aniline, HClHCl

    Tap an option to check your answer.

  2. Question 2

    2021 Paper 15

    40
    Y + aniline reacts to give yellow dye. Find structure of yellow dye Identify Z

    Tap an option to check your answer.

  3. Question 3

    6 Apr 2026 S1

    47
    Consider the following sequence of reactions. The percentage of nitrogen in the yellow product ( X ) formed is ____\_\_\_\_ %. (Nearest Integer) (Given Molar mass in gmol−1H:1,C:12, N:14g{mol}^{- 1}H:1,C:12,\text{ }N:14 )