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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. Predict the minor product formed when chlorobenzene reacts with chloromethane in the presence of anhydrous AlCl3?
2. If a compound does not affect the plane of plane polarised light when passed through it, the compound is said to be _________
3. The C-Cl bond length in chlorobenzene is less than the C-Cl bond length in chloromethane because of the ________
4. 2-Chloronitrobenzene is more reactive than chlorobenzene.
5. What will be the product of the following reaction?
2CH3CH2Br + 2Na + dry ether = ________
6. The reaction between chloroethane and potassium hydroxide is a _______ order reaction.
7. Which of the following statements is correct regarding unimolecular nucleophilic substitution reactions?
8. Which of the following compounds is most easily converted to a phenol when heated with aqueous NaOH solution?
9. The heating of 1-Chlorobutane along with alcoholic KOH results in ________
10. Which of the following is the suitable medium for preparing Grignard reagents?
11. A chiral compound with an ‘X’ group attached to the stereocenter has been replaced by a ‘Y’ group. The product obtained rotates the plane of polarised light in the direction opposite to that of the original compound. Name the process that has taken place.
12. Which of the following has a chiral carbon atom?
13. What is formed when ethyl magnesium bromide reacts with water?
14. Which of the following compounds does not have a stereocenter?
15. Compared to haloalkanes, the reactivity of haloarenes towards nucleophilic substitution reactions is _________
16. Identify the catalyst in Friedel-Crafts acylation reaction.
17. What is the chirality of 2-Chlorobutane?
18. Which of the following statements in incorrect regarding SN2 mechanisms?
19. As the stability of carbocation formed in the first step of SN1 reaction increases, the rate of the reaction _________
20. The process of separation of a racemic mixture into the respective d and l optical isomers is called __________
21. Iodomethane reacts faster than bromomethane in SN2 reaction with OH–?
22. What is the most suitable term for the following transformation?
Retention of configuration for relative spatial arrangement of bonds in given figure
23. The reaction that takes place when an electron rich species stronger than the halide approaches the partially positive carbon atom of a haloalkane and forms a new bond with the carbon atom and in the process displacing the halogen is called a ________ reaction.
24. Which is the metal involved in Wurtz-Fittig reaction?
25. When a reaction proceeds with the retention of configuration, the optical activity of the product will remain same as that of the original reactant.

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