Reagent 'X' dissolves AgCI precipitate to form a soluble complex 'Y'. On passing H_(2)S gas through Y, a black precipitate is obtained. Find the number of possibilities of 'X' from the following reagents. KCN, conc. HCI, Na_(2)S_(2)O_(3),NH_(3), dil. HNO_(3)

Reagent 'X' dissolves AgCI precipitate to form a soluble complex 'Y'.

1.	Reagent 'X' dissolves AgCI precipitate to form a soluble complex 'Y'. On passing H_(2)S gas through Y, a black precipitate is obtained. Find the number of possibilities of 'X' from the following reagents. KCN, conc. HCI, Na_(2)S_(2)O_(3),NH_(3), dil. HNO_(3)
Answer» Solution :KCN, CONC `HCI, Na_(2)S_(2)O_(3), NH_(3)`