271.

Benzoin is

• compound containing an aldehyde and a ketonic group

• α,β-unsaturated acid

• α-hydroxy aldehyde

• α-hydroxy ketone

The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive, called RDX. The organic compound is

• phenol

• toluene

• glycerine

• formaldehyde

The reagent which does not give acid chloride on treating with a carboxylic acid is

• PCl₅

• Cl₂

• SOCl₂

• PCl₃

Identify the organic compound which, on heating with strong solution of NaOH, partly converted into an acid salt and partly into alcohol

• benzyl alcohol

• acetaldehyde

• acetone

• benzaldehyde

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

An important reaction of acetone is autocondensation in presence of concentrated sulphuric acid to give the aromatic compound

• mesitylene

• mesityl oxide

• trioxan

• phorone

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

Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as

• Perkin's reaction

• Cannizaro's reaction

• Sandmeyer's reaction

• Claisen condensation