Question

why NO is colourless and odourless but NO2 is brown and pungent smelling?explain.

Answer 1

Nitrogen oxides, NO and NO2 as NO2. Oxides of nitrogen (NOx) is the term usually used to refer to nitrogen monoxide (nitric oxide or NO; acolourless and odourless gas) and nitrogen dioxide (NO2; a red-brown gas with a pungent smell which and soluble in watee