Salt (A) on heating gives a colourless neutral gas which supports combustion. From the aforesaid, flow diagram, answer the following questions. Which of the following statement is correct?

Salt (A) on heating gives a colourless neutral gas which supports co

1.	Salt (A) on heating gives a colourless neutral gas which supports combustion. From the aforesaid, flow diagram, answer the following questions. Which of the following statement is correct?
Answer» Salt (A) gives yellow PRECIPITATE with chloroplantinic acid as well as with SODIUM cobaltinitrite. The brown RING is formed DUE to the formation of nitroso ferrous sulphate `[Fe(NO)]^(2+) SO_(4)^(-)`. Salt C reacts with silver nitrate solution to form white precipitate (a) and (b) both Solution :(A) Contains `NO_(3)^(-) (C) rarr NaNO_(3)` `(B) rarr NH_(3) (C) [Fe(H_(2)O)_(5)NO] SO_(4)` or `FeSO_(4).NO` `(A) rarr NH_(4)NO_(3)`