The reddish-brown fume coming out when lead nitrate is heated is known as
Nitrogen trioxide
Nitrogen monoxide
Nitrogen
Nitrogen dioxide
The brown fume coming out when lead nitrate is heated is due to the liberation of _____ gas.
In the given experiment, on heating lead nitrate powder in a boiling test tube, we observe brown fumes. The emission of brown coloured fumes is due to formation of: