Jee Advanced
P Block Elements
IIT-JEE 2008 Paper 1 Offline
MCQM+4 / -22008
A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is(are):