Absolute alcohol is prepared by :

• vacuum distillation

• azeotropic distillation

• steam distillation

• None of the above

82.

Ether on carbonylation gives :

• alkanoic acid

• alkanone

• alkyl alkanoate

• alkanal

Ethanol shows intermolecular H-bonding .Which of the following property is affected by H-bonding ?

• Volatility

• Boiling point

• Solubility

• All of these

How many $\mathrm{\alpha }$-hydrogens are diethyl ether ?

• 10

• 6

• 4

• 2

Which is the major product formed when C₆H₅CONHC₆H₅ undergoes nitration?

Williamson's synthesis is used to prepare :

• bakelite

• PVC

• acetone

• diethyl ether

Salicylic acid can be easily prepared by reaction between

• phenol and CO₂

• benzoic acid and H₂O₂

• benzene diazonium chloride and CO₂

• phenol and formic acid.

Reaction of aniline with HNO₂ followed by treatment of dilute acid gives

• C₆H₅NHOH

• C₆H₅OH

• C₆H₅NHNH₂

• C₆H₆