A pale yellow inorganic compound K is insoluble in hot and dil. HNO_(3) but dissolves in concentrated ammonia solution and compound L is formed, on treatment with dil. HNO_(3) compound L produces a metal cation which gives white precipitate M with hypo solution. when an aqueous solution of (M) is boiled, a black precipitate of (N) is formd which dissolves in hot dil. HNO_(3) and on adding HCl gives a white precipitate. when the compound (K) is heated with concentrated H_(2)SO_(4) and MnO_(2) brown fumes are observed. Q. Compound (M) and black precipitate of (N) are respectively:

A pale yellow inorganic compound K is insoluble in hot and dil. HNO_(3

1.	A pale yellow inorganic compound K is insoluble in hot and dil. HNO_(3) but dissolves in concentrated ammonia solution and compound L is formed, on treatment with dil. HNO_(3) compound L produces a metal cation which gives white precipitate M with hypo solution. when an aqueous solution of (M) is boiled, a black precipitate of (N) is formd which dissolves in hot dil. HNO_(3) and on adding HCl gives a white precipitate. when the compound (K) is heated with concentrated H_(2)SO_(4) and MnO_(2) brown fumes are observed. Q. Compound (M) and black precipitate of (N) are respectively:
Answer» `PbI_(2),PbS` `PbS_(2),PbS` `Ag_(2)S_(2)O_(3),Ag_(2)S` `AgSO_(3),AG` ANSWER :C