Question

Which metal nitrate gives colourless gas on thermal decomposition??

(a) NaNo3
(b) Cu(NO3)2
(c) Ba(NO3)2
(d) Hg(NO3)2

Somebody help me

Answer 1

your answer is (b) Cu(NO³)
thank you

Answer 2

(b) on heating  b,c,d gives nitrogen dioxide which is reddish brown gas