1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following reagents could be used to distinguish aniline from methanamine? (i) Bromine water (ii) CHCl3 and aqueous KOH (iii) Dilute HCl (iv) Nitration mixture under heated condition

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Which of the following reagents could be used to distinguish aniline from methanamine?
(i) Bromine water
(ii) $ CHCl_{3} $ and aqueous $ KOH $
(iii) Dilute $ HCl $
(iv) Nitration mixture under heated condition

J & K CETJ & K CET 2016Amines

Solution:

When bromine water is added to aniline at room temperature, decolourisation of the bromine water occurs and a white ppt. of $2,4,6$-tribromoaniline is obtained
image
Nitration of aniline will give benzene diazonium chloride which will further form an orange dye with $2$-naphthol and dil $NaOH$ whereas methanamine will liberate $N_{2}$ on reaction with $HNO_{2}$