The action of heat on the blue crystalline solid A, gives a reddish brown gas B, a gas which relights a glowing splint and leaves a black residue. When gas C, which has a rotten egg smell, is passed through a solution of A, a black ppt. is formed.
(a) Identify A, B and C
(b) Write equation for action of heat on A.
(c) Write equation between solution of A and gas C.
