They have no pie bonds. They only have one sigma bond. Absence of pie bond shows that electrons cannot move to undergo reaction. Therefore, lower alkanes, methane, do not undergo nitration reactions.

What happens when propane undergoes nitration?

We can see from the above discussion that we obtain 1-nitropropane, 2-nitropropane, nitroethane and nitromethane from the nitration of propane. So, the correct answer is “OptionA,B,C and D”. Note: The nitration of alkanes is a conversion of great commercial use.

What is Vapour phase nitration of alkanes?

(ii) Vapour phase nitration: Lower member of alkanes can be nitrated by vapour phase nitration i.e. by heating a gaseous mixture of hydrocarbon and nitric acid vapours at 673-773 K. ... It is carried out by heating higher alkanes (hexane or higher members) with fuming sulphuric acid.