Sunday 29 September 2024

IUPAC naming Haloalkanes Class 12

 Here are the MCQs with the degree of the carbon atom mentioned, without the answers:


1. Identify the correct IUPAC name and degree of the carbon carrying the halogen in the following compound:




a) 1-Bromo-2-propene, Primary

b) 3-Bromo-1-propene, Primary

c) Allyl bromide, Primary

d) 2-Bromo-1-propene, Secondary



2. Which of the following is the correct IUPAC name and degree of the carbon carrying the halogen for C6H5CH2Cl?


a) Benzyl chloride, Primary

b) 1-Chloromethylbenzene, Primary

c) Aryl chloride, Secondary

d) Methylene chloride, Primary



3. The IUPAC name and degree of the carbon carrying the halogen in CH3-CH(Cl)-CH2-CH3 is:


a) 3-Chlorobutane, Secondary

b) 1-Chlorobutane, Primary

c) 2-Chlorobutane, Secondary

d) n-Chlorobutane, Tertiary



4. What is the IUPAC name and degree of the carbon carrying the halogen in C6H5-Br?


a) Bromobenzene, Aryl

b) Aryl bromide, Secondary

c) Benzyl bromide, Primary

d) Phenyl bromide, Aryl



5. Which of the following compounds is a primary alkyl halide? State the degree of the carbon carrying the halogen.


a) CH3-CH(Br)-CH3, Secondary

b) CH3-CH2-CH2-Br, Primary

c) CH3-CH2-CH(Br)-CH3, Secondary

d) CH3-CH(Br)-CH2-CH3, Secondary



6. What is the IUPAC name and degree of the carbon carrying the halogen in CH3-CH=CH-CH2-Cl?


a) 4-Chloro-1-butene, Primary

b) 3-Chlorobutene, Secondary

c) 1-Chloro-3-butene, Primary

d) Allyl chloride, Primary



7. Identify the IUPAC name and degree of the carbon carrying the halogen in the compound CH2Cl-CH2-CH2Cl.


a) 1,2-Dichloropropane, Primary

b) 1,3-Dichloropropane, Primary

c) 2,3-Dichloropropane, Secondary

d) 1,1-Dichloropropane, Primary



8. Which of the following is a secondary alkyl halide? State the degree of the carbon carrying the halogen.


a) CH3-CH2-Br, Primary

b) CH3-CH(Cl)-CH3, Secondary

c) CH3-CH2-CH2-I, Primary

d) C6H5CH2Br, Primary



9. What is the IUPAC name and degree of the carbon carrying the halogen in C6H5-CH2-CH2-Cl?


a) Benzyl chloride, Primary

b) 2-Chloroethylbenzene, Secondary

c) Phenylethyl chloride, Primary

d) 1-Chloroethylbenzene, Primary



10. Which of the following compounds is called a vinylic halide? State the degree of the carbon carrying the halogen.


a) CH3-CH(Cl)-CH3, Seconda

ry

b) CH2=CH-Cl, Vinylic

c) C6H5-CH2-Cl, Primary

d) CH3-CH2-CH2-Br, Primary


Answers 





1. a) 1-Bromo-2-propene, Primary



2. b) 1-Chloromethylbenzene, Primary



3. c) 2-Chlorobutane, Secondary



4. a) Bromobenzene, Aryl



5. b) CH3-CH2-CH2-Br (1-Bromopropane), Primary



6. c) 1-Chloro-3-butene, Primary



7. b) 1,3-Dichloropropane, Primary



8. b) CH3-CH(Cl)-CH3 (2-Chloropropane), Secondary



9. b) 2-Chloroethylbenzene, Secondary



10. b) CH2=CH-Cl (

Vinyl chloride), Vinylic







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