Haloalkane in the presence of alcoholic KOH undergoes

• elimination

• polymerisation

• dimerisation

• substitution

A condensation polymer among the following polymers is

• teflon

• polystyrene

• PVC

• decron

A compound that undergoes bromination easily is

• toulene

• benzoic acid

• phenol

• benzene

A sugar that is not a disaccharide among the following is

• galactose

• lactose

• maltose

• sucrose

Hetrocyclic amino acid among these compound is

• lysine

• tyrosine

• proline

• serine

Methanal is

• CH₃CHO

• CH₃COCH₃

• CH₂OH

• HCHO

Purine derivative among the following bases is

• cytosine

• guanine

• uracil

• thymine

A drug that is antipyretic as well as analgesic is

• penicillin

• chloroquin

• para-acetamidophenol

• chloropromazine hydrochloride

59.

In a reversible reaction a catalyst will affect

• the rate of forward reaction and reverse reaction

• neither the forward reaction nor the rate ofreverse reaction

• the rate of forward reaction

• the rate of reverse reaction

Grignard reagent is not prepared in aqueous medium but prepared in ether medium. Because

• the reagent reacts with water

• the reagent becomes inactive in water

• it is insoluble in water

• the reagent is highly reactive in water