Q. An organic compound 'A' contains nitrogen and chlorine. It dissolves readily in water to give a solution that turns litmus red. Titration of compound 'A' with standard base indicates that the molecular weight of ' $A$ ' is $131 \pm 2$. When a sample of 'A' is treated with aq. $NaOH$, a liquid separates which contains $N$ but not $Cl$. Treatment of the obtained liquid with nitrous acid followed by phenol gives orange precipitate. The compound ' $A$ ' is :
Solution:
Correct answer is (d)
