Tap water is not used to prepare a solution of silver nitrate in the laboratory. Why?
The correct option is
C. Tap water contains dissolved chlorine which reacts with silver nitrate to give a white precipitate of silver chloride
Tap water contains dissolved chloride ions which react with silver nitrate to give a white precipitate of silver chloride
AgNO3+Cl−(dissolvedintapwater)⟶AgCl(whitprecipitate)+NO−3