Stephen's reduction is used to prepare aldehyde from
alcohol
alkyl cyanides
alkanones
acid chlorides
Given below are some statements concerning formic acid, which of them is true ?
It is weaker acid than acetic acid
It is reducing agent
When its calcium salt is heated, it forms a ketone
It is an oxidising agent
B.
It is reducing agent
Formic acid also act as a reducing agent as it can reduce Tollen's reagent, Fehling solution, mercuric chloride and KMnO4 etc.
Which of the following gives oxalic acid?
Heating of acetic acid
Action of nitric acid on glucose
Acidic hydrolysis of cyanogen
Strong heating of sodium formate
Benzene diazonium chloride on reaction with phenol in weakly basic medium gives
diphenyl ether
p-hydroxy azobenzene
chlorobenzene
benzene