41.

Toluene on treatment with CrO₃ and (CH₃CO)₂O followed by hydrolysis with dil. HCl gives

• benzaldehyde

• benzoic acid

• phenol

• phenylacetaldehyde.

Which ofthe following compounds is not chiral?

• 1-Chloropentane

• 2-Chloropentane

• 1-Chloro-2-methyl pentane

• 3-Chloro-2-methyl pentane

Which ofthe following molecules will not show optical activity?

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

• phenol

• toluene

• glycerine

• formaldehyde

Cumene process is the most important commercial method for the manufacture of phenol. Cumene is

• iso-propyl benzene

• ethyl benzene

• vinyl benzene

• propyl benzene.

Prolonged exposure of fat or oil in moist air and light causes bad smell (rancidity). It is due to

• formation of C₆ - C₁₂ fatty acids

• formation of ketone and aldehyde

• both of these causes

• formation of glycerol.

Which of these compounds is synthesised by chloral?

• DDT

• BHC

• Chloroform

• Michlers ketone.

When phenol reacts with phthalic anhydride in presence of H₂SO₄ and heated and hot reaction mixture is poured in NaOH solution, then product formed is

• alizarin

• methyl orange

• fluorescein

• phenolphthalein.

The function of AlCl₃, in Friedel-Craft's reaction is to

• absorb HCl

• absorb water

• produce nucleophile

• produce electrophile.

Oxidation product of 1,2-cyclopentanediol with HIO₄ gives

• OHC-(CH₂)₃-CHO

• 

• COOH-CH-CH₂-CH₂-COOH

• None of these