Q: When we heat lead nitrate [Pb(NO₃)₂] in a boiling tube, we observe the emission of brown fumes. Which one of the following is the brown gas?
(a)NO
(b)N₂O₂
(c)NO₃
(d)NO₂
Correct Answer: (d)
The correct answer is (a) 'NO'. This question from the General Studies domain tests knowledge of Miscellaneous.