hydrolysis of q compound wws carried out by refluxing excess potassium hydroxide solution. the resulting solution is acidified with dilute nitric acid and excess silver nitrate added to precipitate the chloride ions. calc the number of chlorine atoms present
The Cl on the CH2Cl part of B is the one we find in hydrolysis. The Cl attached to the 4 position of the benzene ring does not give the Cl/AgNO3 test.