Chemistry class 12 Haloalkane and Haloarene Most Important Questions Chemistry
Chemistry class 12 Haloalkane and Haloarene Questions
Q.1: Draw the structure of DDT & give its IUPAC name?
Q.2: Write the structure of 1,4-Dibromobut-2-ene
Q.3: Write the major product:
Q.4: Draw the structure of major monohalo product.
Q.5: Which of following two reaction is sn2 rxn and why?
Q.6: What do you mean by chirality of a compound. Give example.
Q.7: Arrange each set of compound in order of increasing boiling point; 1-chloropropane, Isopropyl chloride, 1-chlorobutane.
Q.8: Which would undergo sn2 reaction faster in following: (i) C6H5-CH2-CH2-Br (II) C6H5-CH-CH3
Q.9: Why chloroform is stored in dark-colored bottles away from sunlight?
Q.10: How do you convert the following?
(I) prop-1-ene to propan-2-ol
(II) Bromobenzene to 2-bromoacetophenone
(III) 2-bromobutane to but-2-ene
Q.11: Identify the chiral molecules in following pair:
Q.12: Write a short note on:
(I) Wurtz Reaction
(II) Finklestein Reaction
(III) Sandmeyer’s Reaction
Q.13: Draw the structure of major monohalo products.
Q.14: Write the IUPAC name of the following compound.
Q.15: Write the IUPAC name of the following compound:
Q.16: Explain why the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride?
Q.17: Write the structure of the major product:
Q.18: How will you bring about the following conversion?
(I) Bromomethane to propanone
Q.19: Arrange compound of each set in order of reactivity towards sn2 displacement:
(I) 1-Bromo-3-methylbutane
(II) 2-Bromo-2-Methylbutane
(III) 3-Bromo-2-Methylbutane
Q.20: why the Cl-Cl bond length in chloro-benzene is shorter than that in CH 3–Cl ?
Q.21: Chlorobenzene is extremely less reactive towards a nucleophilic substitution reaction. Give reason.
Q.22: What happens when bromine attacks CH2=CH-CH2-C(triple bond)CH?
Q.23: Write a chemical test to distinguish between:
(I) Chlorobenzene and benzyl chloride
(II) Chloroform and carbon tetrachloride
Q.24: How would you differentiate between SN1 and SN2 mechanism of substitution reaction.Give one example of each?
Q.25: How the following conversion can be carried out?
(I) Ethanol to propanenitrile
(II) Aniline to chlorobenzene
(III)Isopropyl alcohol to Iodoform
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