Class Test: Haloalkanes and Haloarenes (Class XII)
Q1 & Q2: Nomenclature
Q1. Give the IUPAC name of the following compound:
CH₃–CH(Cl)–CH₂–Br
Q2. Write the structure of 2-bromo-3-methylbutane.
Q3 & Q4: Preparation of Haloalkanes
Q3. Explain the preparation of chloroethane from ethanol using chemical equation.
Q4. Write the reaction of methane with chlorine in presence of sunlight. Name the type of reaction.
Q5 & Q6: Nucleophilic Substitution Reactions (SN1 & SN2)
Q5. Differentiate between SN1 and SN2 reactions.
Q6. Which will react faster in SN1 reaction: tert-butyl chloride or ethyl chloride? Give reason.
Q7 & Q8: Haloarenes & Their Reactions
Q7. Why do haloarenes not undergo nucleophilic substitution reactions easily?
Q8. What happens when chlorobenzene is heated with NaOH at high temperature and pressure?
Q9 & Q10: Physical Properties & Uses
Q9. Arrange the following in increasing order of boiling point:
CH₃Cl, CH₃Br, CH₃I
Q10. Write two uses of DDT and mention one harmful effect.
ANSWERSAnswers