NCERT Solutions class 12 Chemistry Haloalkanes and haloarenes part 2

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NCERT Solutions class 12 Chemistry Haloalkanes and haloarenes part 2 Class 12 Chemistry book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Chemistry chapter wise NCERT solution for Chemistry part 1 and Chemistry part 2 for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

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NCERT Solutions class 12 Chemistry Haloalkanes and haloarenes part 2

NCERT Class 12 Chemistry Chapter-wise Solutions

  •  1 – The Solid State
  • 2 – Solutions
  • 3 – Electrochemistry
  • 4 – Chemical Kinetics
  • 5 – Surface Chemistry
  • 6 – General Principles and Processes of Isolation of Elements
  • 7 – The p-Block Elements
  • 8 – The d-and f-Blocks Elements
  • 9 – Coordination Compounds
  • 10 – Haloalkanes and Haloarenes
  • 11 – Alcohols, Phenols and Ethers
  • 12 – Aldehydes, Ketones and Carboxylic Acids
  • 13 – Amines
  • 14 – Biomolecules
  • 15 – Polymers
  • 16 – Chemistry in Everyday Life


  • 10.1 Classification
  • 10.2 Nomenclature
  • 10.3 Nature of C-X Bond
  • 10.4 Methods of Preparation
  • 10.5 Physical properties
  • 10.6 Chemical Reactions
  • 10.7 Polyhalogen Compounds

NCERT Solutions class 12 Chemistry Haloalkanes and haloarenes part 2

12. Explain why

(i) the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride?

(ii) alkyl halides, though polar, are immiscible with water?

(iii) Grignard reagents should be prepared under anhydrous conditions?

13. Give the uses of freon 12, DDT, carbon tetrachloride and iodoform.

14. Write the structure of the major organic product in each of the following reactions:

(i) 14360871537948.gif

(ii) 1436087154507.gif

(iii) 14360871551372.gif

(iv) 14360871557389.gif

(v) 1436087156628.gif

(vi) 14360871575576.gif

(vii) 1436087158198.gif

(viii) 14360871588519.gif

15. Write the mechanism of the following reaction:


16. Arrange the compounds of each set in order of reactivity towards SN2 displacement:

(i) 2-Bromo-2-methylbutane, 1-Bromopentane, 2-Bromopentane

(ii) 1-Bromo-3-methylbutane, 2-Bromo-2-methylbutane, 3-Bromo-2- methylbutane

(iii) 1-Bromobutane, 1-Bromo-2,2-dimethylpropane, 1-Bromo-2-methylbutane, 1-Bromo-3-methylbutane.

17. Out of C6H5CH2Cl and C6H5CHClC6H5, which is more easily hydrolysed by aqueous KOH?

18. p-Dichlorobenzene has higher m.p. and lower solubility than those of o– and m-isomers. Discuss.

19. How the following conversions can be carried out?

(i) Propene to propan-1-ol

(ii) Ethanol to but-1-yne

(iii) 1-Bromopropane to 2-bromopropane

(iv) Toluene to benzyl alcohol

(v) Benzene to 4-bromonitrobenzene

(vi) Benzyl alcohol to 2-phenylethanoic acid

(vii) Ethanol to propanenitrile

(viii) Aniline to chlorobenzene

(ix) 2-Chlorobutane to 3, 4-dimethylhexane

(x) 2-Methyl-1-propene to 2-chloro-2-methylpropane

(xi) Ethyl chloride to propanoic acid

(xii) But-1-ene to n-butyliodide

(xiii) 2-Chloropropane to 1-propanol

(xiv) Isopropyl alcohol to iodoform

(xv) Chlorobenzene to p-nitrophenol

(xvi) 2-Bromopropane to 1-bromopropane

(xvii) Chloroethane to butane

(xviii) Benzene to diphenyl

(xix) tert-Butyl bromide to isobutyl bromide

(xx) Aniline to phenylisocyanide

20. The treatment of alkyl chlorides with aqueous KOH leads to the formation of alcohols but in the presence of alcoholic KOH, alkenes are major products. Explain.

21. Primary alkyl halide C4H9Br (a) reacted with alcoholic KOH to give compound (b).Compound (b) is reacted with HBr to give (c) which is an isomer of (a). When (a) is reacted with sodium metal it gives compound (d), C8H18 which is different from the compound formed when n-butyl bromide is reacted with sodium. Give the structural formula of (a) and write the equations for all the reactions.

22. What happens when

(i) n-butyl chloride is treated with alcoholic KOH,

(ii) bromobenzene is treated with Mg in the presence of dry ether,

(iii) chlorobenzene is subjected to hydrolysis,

(iv) ethyl chloride is treated with aqueous KOH,

(v) methyl bromide is treated with sodium in the presence of dry ether,

(vi) methyl chloride is treated with KCN.

NCERT Solutions class 12 Chemistry

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