Question

what is action of HNO2 on primary and secondary nitroalkanes​

Answer 1

Answer:

Reaction with nitrous acid: The

reaction is used to distinguish

between primary, secondary or

tertiary nitroalkanes. With nitrous

acid, a-hydrogen is replaced by

nitroso group.

a. Primary nitroalkanes react with

nitrous acid to form blue coloured

nitroso-nitroalkanes (aci form)

which on dissolution in sodium

hydroxide gives red solution.