CBSE  /  Class 12  /  Chemistry  /  Haloalkanes and Haloarenes

  • 1. 
    The compound having general formula CH is

  • Alkene
  • Alkyne
  • Alkane
  • none of these

  • 2. 
    The negative part of the addendum (the molecule to be added) adds on the carbon atom of the double bond containing the least number of hydrogen atoms. This rule is known as

  • Saytzeffs rule
  • Peroxide rule
  • Markovnikov’s rule
  • van’t hoff rule

  • 3. 
    Which of the following compounds can yield only one monochlorinafed product upon free radical chlorination?

  • 2, 2-Dimethylpropane
  • 2-Methylpropane
  • 2-Methylbutane
  • n-Butane

  • 4. 
    The reaction

  • nucleophilic addition
  • free radical addition
  • electrophilic addition
  • electrophilic substitution

  • 5. 
    Bromination of methane in presence of sunlight is a

  • nucleophilic substitution
  • free radical substitution
  • electrophilic substitution
  • nucleophilic addition

  • 6. 
    The reaction of toluene with chlorine in presence of FeCl

  • amixture of o-and p-chlorotoluene
  • benzyl chloride
  • m-chlorotuluene
  • benzoyl chloride

  • 7. 
    Alkyl halides are immiscible in water though they are polar because

  • they react with water to give alcohols
  • they cannot form hydrogen bonds with water
  • C -X bond cannot be broken easily
  • they are stable compounds and are not reactive

  • 8. 
    Which of the following compounds will have highest melting point?

  • Chlorobenzene
  • o-Dichlorobenzene
  • m-Dichlorobenzene
  • p-Dichlorobenzene

  • 9. 
    Ethyl alcohol is obtained when ethyl chloride is boiled with

  • alcoholic KOH
  • aqueous KOH
  • water
  • aqueous KMnO

  • 10. 
    Butane nitrile can be prepard by heating.

  • propyl alcohol with KCN
  • butyl chloride with KCN
  • butyl alcohol with KCN
  • propyl chloride with KCN
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