41.

Bakelite is a:

• urea-formaldehyde resin

• phenol formaldehyde resin

• polyethylene

• artificial rubber

α-helix is found in :

• DNA

• RNA

• Lipid

• Protein

Aspirin is:

• acetyl salicylic acid

• 2-methoxy benzoic acid

• acetyl oxalic acid

• ethoxy benzoic add

• fiuorobenzene

• benzene

• 1, 2-difluoro benzene

• 1, 3-difluoro benzene

Oxidation of aldehydes gives :

• esters

• acids

• ethers

• alcohols

The common acid used in the manufacture of rayon and plastic is :

• methanoic acid

• ethanoic acid

• propanoic acid

• butanoic acid

The compound used as an explosive is:

• 2,4,6-tribromoaniline

• 2,4,6-trinitrotoluene (TNT)

• 1,3,5-trinitrobenzene

• 2,4,6-trichlorotoluene

The indicator that is obtained by coupling the diazonium salt of sulphanilic acid with N, N-dimethyl aniline is

• phenanthroline

• methyl orange

• methyl red

• phenolphthalein