General Methods of Preparation, Properties, and Reactions NEET Questions

Organic Chemistry - Hydrocarbons

General Methods of Preparation, Properties, and Reactions MCQ Questions


13.
Why can't methane be prepared by Kolbe's electrolytic method?
A.
Sodium formate doesn't decompose
B.
Methane has odd number of carbons
C.
Methane is too volatile
D.
Because two methyl radicals combine to form ethane, not methane
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ANSWER :
D. Because two methyl radicals combine to form ethane, not methane
14.
Ethylidene chloride (gem-dihalide) corresponds to which IUPAC name?
A.
Vinyl chloride
B.
Ethene-1,1-diyl dichloride
C.
1,2-Dichloroethane
D.
1,1-Dichloroethane
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ANSWER :
D. 1,1-Dichloroethane
15.
Which reagent is used to reduce alkyl halide to alkane?
A.
LiAlH4 only
B.
KMnO4/H+
C.
Zn/HCl
D.
Na/Liq. NH3
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ANSWER :
C. Zn/HCl
16.
Ethylene dichloride (vic-dihalide) is the common name for:
A.
Chloroethane
B.
Vinyl chloride
C.
1,2-Dichloroethane
D.
1,1-Dichloroethane
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ANSWER :
C. 1,2-Dichloroethane
17.
Which of the following alkyl halides is NOT reduced by Zn/HCl?
A.
Alkyl iodides
B.
Alkyl bromides
C.
Alkyl chlorides
D.
Alkyl fluorides
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ANSWER :
D. Alkyl fluorides
18.
The IUPAC name of (CH₃)₃CBr is:
A.
1-Bromo-2-methylpropane
B.
2-Methyl-2-bromopropane
C.
2-Bromo-2-methylpropane
D.
tert-Butyl bromide
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ANSWER :
C. 2-Bromo-2-methylpropane