JEE CHEMISTRY UNIT 16
QUIZ NO 2
TOTAL QUESTIONS = 20
1. What type of reaction is shown by alkyl halides with ammonia?
A. Nucleophilic substitution
B. Elimination
C. Electrophilic substitution
D. Oxidation
2. What is the product of the reaction between CH3CH2Br and NaCN?
A. Ethyl isocyanide
B. Methyl isocyanide
C. Ethyl cyanide
D. Methyl cyanide
3. What is the boiling point trend in alkyl halides with increasing chain length?
A. Increases
B. Remains constant
C. Decreases
D. Varies irregularly
4. Which of the following is a primary alkyl halide?
A. CH3CH2Cl
B. CH3Cl
C. CCl4
D. CH3CH2CH2Cl
5. What is the reagent used for the dehydrohalogenation of alkyl halides?
A. Conc. H2SO4
B. NaOH
C. Aqueous KOH
D. Alcoholic KOH
6. Which reagent is used to convert alcohols to alkyl halides?
A. PCl5
B. HCl
C. AgF
D. SOCl2
7. What is the major product of the reaction between CH3CH2Br and NaCN?
A. Ethyl isocyanide
B. Methyl cyanide
C. Methyl isocyanide
D. Ethyl cyanide
8. What is the major product when CH3CH2Cl reacts with Mg in the presence of dry ether?
A. Diethyl ether
B. Ethyl magnesium chloride
C. Diethyl magnesium
D. Grignard reagent
9. Which reagent is used to convert alkyl halides to alcohols?
A. NaOH
B. Zn/Conc. HCl
C. Aqueous KOH
D. Conc. H2SO4
10. What is the product of the reaction between CH3Br and Na in the presence of dry ether?
A. Propane
B. Methane
C. Butane
D. Ethane
11. What is the IUPAC name of CH2=CHCH2Cl?
A. Chloropropene
B. Vinyl bromide
C. Allyl chloride
D. Vinyl chloride
12. Which of the following is used in the preparation of Grignard reagents?
A. Mg in dry ether
B. Dry ether
C. Mg in water
D. Zn/Conc. HCl
13. Which of the following is used as a refrigerant?
A. Freon-12
B. CH2Cl2
C. CCl2F2
D. CFC-11
14. What type of reaction is shown by alkyl halides with aqueous KOH?
A. Oxidation reaction
B. Nucleophilic substitution
C. Electrophilic substitution
D. Elimination reaction
15. Which of the following is an example of a dihalide?
A. CCl4
B. CH2Cl2
C. CHCl3
D. C2H4Cl2
16. Which of the following is the most reactive towards SN1 reactions?
A. CH3CH2Cl
B. CH3CHClCH3
C. CH3CH2Br
D. CH3CCl3
17. Which of the following is the least reactive alkyl halide?
A. CH3CH2CH2Cl
B. CH3Cl
C. CH3CH2Cl
D. CH3CH2Br
18. What is the boiling point trend in alkyl halides with increasing chain length?
A. Varies irregularly
B. Decreases
C. Increases
D. Remains constant
19. What is the general formula of alkyl halides?
A. CnH2nX2
B. CnH2n+1X
C. CnH2n-1X
D. CnH2n+2X2
20. Which of the following alkyl halides undergoes the fastest SN1 reaction?
A. CH3CH2Br
B. CH3CHClCH3
C. CH3CCl3
D. CH3CHBrCH3
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