JEE Chemistry - Hydrocarbons

Buy JEE Main Engineering Entrance Exam (Pro) Practice test pack

Question - 1

Which of the following is correct regarding the stability of carbocation?

  • A 3°>2°>1°
  • B 1°<2°<3°
  • C 2°>1°>3°
  • D 2°>3°>1°

Question - 2

A liquid hydrocarbon is converted to a mixture of gaseous hydrocarbon by

  • A hydrolysis
  • B oxidation
  • C distillation
  • D cracking

Question - 3

The peroxide effect in anti-Markovnikov addition involves

  • A The heterolytic fission of the double bond
  • B The homolytic fission of the double bond
  • C a free radical mechanism
  • D an ionic mechanism

Question - 4

The catalyst required for the given reaction is
\(HC\equiv CH+dil{ \quad H }_{ 2 }{ SO }_{ 4 }\overset { Catalyst }{ \longrightarrow } { CH }_{ 3 }CHO\)

  • A HgSO4
  • B Pt
  • C A1CI3
  • D Pd

Question - 5

Which conformation of ethane has the lowest potential energy?

  • A Eclipsed
  • B Skewed
  • C Staggered
  • D All will have equal PE

Question - 6

Baeyer's reagent is

  • A aqueous KMnO4
  • B neutral KMnO4
  • C alkaline KMnO4
  • D aqueous bromine water

Question - 7

Benzene reacts with acetyl chloride in the presence of AlCl3 to give

  • A acetophenone
  • B toluene
  • C benzophenone
  • D ethyl benzene

Question - 8

An aqueous solution of compound A gives ethane on electrolysis, the compound A is

  • A Ethyl acetate
  • B Sodium acetate
  • C Sodium propionate
  • D Sodium ethoxide

Question - 9

Tolueue reacts with chlorine in the presence of light to give

  • A benzyl choride
  • B benzoyl chloride
  • C p-chlorotoluene
  • D o-chlorotoluene

Question - 10

Which of the following is less reactive than benzene towards electrophilic substitution reactions?

  • A Nitrobenzene
  • B Aniline
  • C Bromobenzene
  • D Chlorobenzene