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Class 12 Chemistry Practice Test: Haloalkanes & Haloarenes - Chemical Reactions
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Class 12 Chemistry Practice Test: Haloalkanes & Haloarenes - Chemical Reactions
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25 Questions

1. Which of the following statements is correct regarding unimolecular nucleophilic substitution reactions?
2. Fittig reaction results in the formation of a diphenyl.
3. The heating of 1-Chlorobutane along with alcoholic KOH results in ________
4. Predict the chirality of the shown compounds.
A is chiral & B is achiral for the given diagram
5. Which of the following has a chiral carbon atom?
6. Which of the following compounds does not have a stereocenter?
7. Iodomethane reacts faster than bromomethane in SN2 reaction with OH–?
8. How many β-carbon atoms does 2-Bromobutane have?
9. Which of the following compounds is most easily converted to a phenol when heated with aqueous NaOH solution?
10. Which is the metal involved in Wurtz-Fittig reaction?
11. A haloalkane is known to have an SN2 reaction rate 30 times faster than that of ethyl bromide. Identify the haloalkane.
12. If a compound does not affect the plane of plane polarised light when passed through it, the compound is said to be _________
13. Identify ‘X’ from the reaction shown.
Concentrated H2SO4 is x in the given reaction by sulphonation of chlorobenzene
14. As the stability of carbocation formed in the first step of SN1 reaction increases, the rate of the reaction _________
15. Which of the following will have the highest reactivity towards SN2 reaction, where R=methyl group?
16. The major product formed from the dehydrohalogenation of 2-Bromopentane is pent-2-ene.
17. What is formed when ethyl magnesium bromide reacts with water?
18. Which of the following is not an ambident nucleophile?
19. Tertiary alkyl halides show higher reactivity towards bimolecular nucleophilic substitution than secondary alkyl halides.
20. The process of separation of a racemic mixture into the respective d and l optical isomers is called __________
21. Which of the followings reagents forms an isonitrile when reacted with an alkyl halide?
22. Compared to haloalkanes, the reactivity of haloarenes towards nucleophilic substitution reactions is _________
23. What will be the effect on the plane of plane polarised light when it passes through a solution of dlbutan-2-ol?
24. What is the chirality of 2-Chlorobutane?
25. 2-Chloronitrobenzene is more reactive than chlorobenzene.

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