Self condensation of acetaldehyde, in the presence of dilute alkalies gives
an acetal
an aldol
mesitylene
propionaldehyde
Stephen's reduction is used to prepare aldehyde from
alcohol
alkyl cyanides
alkanones
acid chlorides
B.
alkyl cyanides
Stephen's reduction- Aldehyde can prepared from alkyl cyanides. eg,
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