41.

Which one of the following is not expected to undergo iodoform reaction?

• Propan-2-ol

• Diphenyl methanol

• 1-phenylethanol

• 2-butanol

Identify the combination of compounds that undergo aldol condensation followed by dehydration to produce but-2-enal

• methanal and ethanal

• two moles of ethanal

• methanal and propanone

• ethanal and propanone

An organic compound with the molecular formula C₈H₈O forms 2,4-DNP derivative, reduces Tollen's reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives 1, 2-benzenedicarboxylic acid. The organic compound is

• 2-ethylbenzaldehyde

• 2-methylbenzaldehyde

• acetophenone

• 3-methylbenzaldehyde

Phenyl isocyanide is prepared from aniline by

• Carbylamine reaction

• Rosenmund's reaction

• Koble's reaction

• Reimer-Tiemann reaction

Gabriel's phthalimide synthesis can be used to prepare

• ethanamine

• N-methylmethanamine

• benzene amine

• N, N-dimethylmethanamine

The sugar moiety present in RNA molecule is

• β-D-2-deoxyribose

• β-D-galactose

• β-D-fructofuranose

• β-D-ribose

Novlac, the linear polymer used in paints is

• copolymer of 1,3-butadiene and styrene

• obtained by the polymerization of methyl methacrylate

• nitial product obtained in the condensation of phenol and formaldehyde in the presence of acid catalyst

• obtained by the polymerisation of caprolactam

The carbohydrate used as storage molecule in animal is

• sucrose

• glycogen

• maltose

• glucose