Haloalkanes and Haloarenes Class 12 MCQs Questions with Answers

1. p-dichlorobenzene has higher melting point than its o- and m- isomers because:

2. In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti-Markovnikov’s addition to alkenes because:

3. The decreasing order of boiling points of alkyl halides is:

4. An alkyl halide, RX reacts with KCN to given propane nitrile, RX is:

5. C-Cl bond of chlorobenzene in comparison to C-Cl bond in methyl chloride is:

6. Gem-dibromide is:

7. The synthesis of alkyl fluoride is best accomplished by:

8. The alkyl halide is converted into an alcohol by:

9. Fitting reaction can be used to prepare:

10. A Grignard reagent may be made by reacting magnesium with:

11. An organic compound, on treatment with Br2 in CCl4 gives bromo derivative of an alkene. The compound will be:

12. SN1 reaction of alkyl halides leads to:

13. Benzene hexachloride is:

14. Anti-Markovnikov addition of HBr is not observed in:

15. Which of the following is the most reactive towards nucleophilic substitution reaction?

16. Butane nitrile can be prepard by heating:

17. C – X bond is strongest in:

18. Organic compound must contain an element:

19. Methyl bromide reacts with AgF to give methyl fluoride and silver bromide. This reaction is called:

20. Which of the following is most reactive towards SN¹ reaction?