Question

A metal nitrate A on heating gives yellowish brown coloured metal oxide along with brown gas B and a colourless has C.Aqueous solutions of A on reaction with potassium iodide forms a yellow precipitate of compound D.Identify A,B,C,D.identify types of reactions involved

Answer 1

● A is Lead nitrate [Pb(NO3)2]
● B is the brown gas nitrogen
● C is the colourless gas oxygen
● D is the compound Lead. The precipitate formed is Lead iodide (yellow)
● TYPE OF REACTION : DECOMPOSITION REACTION