The reaction



is fastest when X is

• Cl

• NH₂

• OC₂H₅

• OC₂H₅

p-cresol reacts with chloroform in the alkaline medium to give the compound A which adds hydrogen cyanide to form, the compound B. The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is

Amongst the following the most basic compound is

• benzylamine

• aniline

• acetanilide

• acetanilide

Elimination of bromine from 2-bromobutane results in the formation of-

• equimolar mixture of 1 and 2-butene

• predominantly 2-butene

• predominantly 1-butene

• predominantly 1-butene

Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as

• a Schiff’s base

• an enamine

• an imine

• an imine