Which of the following will be most readily dehydrated under acidic conditions ?

Which of the following cannot reduce Fehling solution ?

• HCOOH

• H₃CCOOH

• HCHO

• H₃CCHO

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

Rice is deficient in :

• lysine

• alanine

• glycine

• leucine

Mutarotation does not occur in :

• sucrose

• D-glucose

• L-glucose

• None of these

48.

Aldehyde which is formed during photosynthesis of plants is :

• methanal

• acetaldehyde

• propanal

• phenylmethanal

 the  given structural formula is of :

• aspartame

• cyclate

• saccharin

• valium

Bithional is an example of :

• antiseptic

• disinfectant

• antibiotic

• tranquiliser