51.

When a mixture of methane and oxygen is passed through heated molybdenum oxide, the main product formed is

• methanoic acid

• ethanal

• methanol

• methanal

Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y respectively are,

• zinc dust and soda lime

• soda lime and zinc dust

• zinc dust and sodium hydroxide

• soda lime and copper

An organic compound is boiled with alcoholic potash. The product is cooled and acidified with HCl. A white solid separates out. The starting compound may be

• ethyl benzoate

• ethyl formate

• ethyl acetate

• methyl acetate

A nitrogen containing organic compound gave an oily liquid on heating with bromine and potassium hydroxide solution. On shaking the product with acetic anhydride, an antipyretic drug was obtained. The reactions indicate that the starting compound is

• aniline

• benzamide

• acetamide

• nitrobenzene

The silver salt of a fatty acid on refluxing with an alkyl  alide gives an

• acid

• ester

• ether

• amine

Pick out the one which does not belong to the family

• pepsin

• Cellulose

• Ptyalin

• Lipase

A nucleoside on hydrolysis gives

• a heterocyclic base and orthophosphoric acid

• an aldopentose, a heterocyclic base and orthophosphoric acid

• an aldopentose and a heterocyclic base

• an aldopentose and orthophosphoric acid

Nylon is not a

• condensation polymer

• polyamide

• copolymer

• homopolymer

2-acetoxy benzoic acid is used as an

• antimalarial

• antidepressant

• antiseptic

• antipyretic

Which one of the following compounds gives trichloromethane on distilling with bleaching powder?

• Methanal

• Phenol

• Ethanol

• Methanol