'X' +AgNO_(3) rarr 'Y' (yellowish white ppt) 'Y' is soluble is nitricacid and ammonia. The ppt. becomes yellowish brown upon addition of excess reagent owing to the formation of 'Z'.If aqueous suspension of 'Y' is boiled then it gives the same product 'Z'. Here 'X' and 'Y' are:

'X' +AgNO_(3) rarr 'Y' (yellowish white ppt) 'Y' is soluble is nitrica

1.	'X' +AgNO_(3) rarr 'Y' (yellowish white ppt) 'Y' is soluble is nitricacid and ammonia. The ppt. becomes yellowish brown upon addition of excess reagent owing to the formation of 'Z'.If aqueous suspension of 'Y' is boiled then it gives the same product 'Z'. Here 'X' and 'Y' are:
Answer» `CO_(3)^(2-)` and `Ag_(2)O` `CO_(3)^(2-)` and `Ag_(2)CO_(3)` `HCO_(3)^(-)` and `Ag_(2)CO_(3)` `HCO_(3)^(-)` and `Ag_(2)O` Answer :B