The structure of the major product formed in the following reaction

Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces 

• 4-phenylcyclopentene

• 2-phenylcyclopentene

• 1-phenylcyclopentene

• 1-phenylcyclopentene

2 methylbutane on reacting with bromine in the presence of sunlight gives mainly

• 1 – bromo -2 - methylbutane

• 2 – bromo -2 - methylbutane

• 2 – bromo -3 - methylbutane

• 2 – bromo -3 - methylbutane

Tertiary alkyl halides are practically inert to substitution by S_N2 mechanism because of

• insolubility

• instability

• inductive effect

• inductive effect

Alkyl halides react with dialkyl copper reagents to give

• alkenes

• alkyl copper halides

• alkanes

• alkanes

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

Which one of the following has the minimum boiling point?

• n-butane

• isobutane

• 1- butene

• 1- butene

Which of the following will have meso-isomer also?

• 2- chlorobutane

• 2- hydroxyopanoic acid

• 2,3 – dichloropentane

• 2,3 – dichloropentane

Rate of the reaction



is fastest when Z is

• Cl

• OCOCH₃

• OC₂H₅

• OC₂H₅

500.

The compound formed on heating chlorobenzene with chloral in the presence concentrated sulphuric acid is

• gammexene

• hexachloroethane

• Freon

• Freon