NCERT/Class 12/Chemistry/Haloalkanes and Haloarenes

Haloalkanes and Haloarenes

Class 12 · Chemistry

37 questions13 easy13 medium11 hard

Sample Questions

Q1.Predict the major product when tert-butyl bromide reacts with KOH in aqueous ethanol.

  • Atert-Butyl alcohol (SN1 product)
  • B2-Methylpropene (E2 elimination product) as major product
  • C1-Butene (Hofmann product)
  • DIsobutane (by reduction)

Q2.In SN1 reactions, the order of reactivity of alkyl halides is:

  • AMethyl > Primary > Secondary > Tertiary
  • BTertiary > Secondary > Primary > Methyl
  • CPrimary > Tertiary > Secondary
  • DSecondary > Tertiary > Primary

Q3.Which of the following is an achiral molecule despite having four different substituents on carbon?

  • ACHBrClI (bromochloroiodomethane)
  • BButan-2-ol
  • CPropan-2-ol
  • D2-Chlorobutane

Q4.What is a racemic mixture?

  • AA pure enantiomer rotating light strongly to the right
  • BAn equimolar mixture of two enantiomers with zero net optical rotation
  • CA mixture of diastereomers
  • DAny achiral compound

Q5.What is the order of boiling points of alkyl halides for the same alkyl group?

  • ARF > RCl > RBr > RI
  • BRI > RBr > RCl > RF
  • CRCl > RBr > RI > RF
  • DRF > RI > RBr > RCl

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Classification of Haloalkanes and HaloarenesElimination Reactions (E1 and E2)Finkelstein and Swarts ReactionsMethods of PreparationNature of C-X BondNomenclature of HaloalkanesNucleophilic Substitution (SN1 and SN2)Optical Activity and ChiralityOrganometallic CompoundsPhysical PropertiesPolyhalogen CompoundsReactions of HaloarenesSandmeyer's ReactionStereochemistry of Nucleophilic Substitution

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