Absolute alcohol is prepared by :
vacuum distillation
azeotropic distillation
steam distillation
None of the above
Which of the following compounds is resistant to nucleophilic attack by hydroxyl ion ?
Methylacetate
Acetonitrile
Acetamide
Diethyl ether
Ethyl amine reacts with nitrous acid to form :
C2H5OH
C2H5OH , N2 , H2O
C2H5N2+Cl-
C2H5NHOH , NH3
B.
C2H5OH , N2 , H2O
Ethyl amine reacts with nitrous acid to give ethyl alcohol and nitrogen .
C2H5NH2 + HNO2 C2H5OH + N2 + H2O
Aldehyde which is formed during photosynthesis of plants is :
methanal
acetaldehyde
propanal
phenylmethanal