The reagent used in Gatterman Koch aldehyde synthesis is :-
Pb/ BaSO4
alkaline KMnO4
acidic KMnO4
CO + HCl
Which of the following is a use of alum?
Making explosives
Bleaching clothes
Water softening
All of the above
Aldol condensation will not occur in :
HCHO
CH3CH2CHO
CH3COCH3
CH3CHO
A.
HCHO
Aldol condensation is given by those carbonyl compounds which have at least one α-H-atom. So, formaldehyde does not give aldol condensation.
The correct order of ease of dehydration of following is:
I > II > III
III > II > I
I > III > II
III > I > II
When acetamide reacts with Br2 and caustic soda, then we get :
acetic acid
bromoacetic acid
methyl amine
ethyl amine