JAMB - Chemistry (1979 - No. 35)
The solution of a sample in a tube will be identified as a chloride if it gives
a white precipitate on addition of AgNO3 and barium chloride solutions
a white precipiate when acidified with HCI, and then AgNO3 solution added
a white precipitate when acidified with dilute HNO3 and then AgNO3 solution added
a white precipitate when acidified with dilute H2SO4 and then barium nitrate solution added
a pungent smell of chlorine gas when dilute HCI and MnO2 are added