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Organic Chemistry -- Classification,Nomenclature and Hybridization
21.
Which of the following statements is true about a homologous series?
- A.Adjacent members of a group differ by a mass of 14.
- B.Adjacent members of a group differ by one—CH2 group.
- C.Members of a homologous series can be prepared by the same general methods.
- D.Members of a homologous series have the same physical and chemical properties.
- Answer
- Report
Answer : [A,B,C]
22.
The large number of organic compounds is due to
- A.the valency of carbon
- B.the small size of carbon
- C.a special property of carbon known as catenation
- D.none of these
- Answer
- Report
Answer : [C]
23.
How many isomers are possible for the alkyl group C4H9?
- A.two
- B.three
- C.four
- D.five
- Answer
- Report
Answer : [C]
24.
Which of the following compounds will have only primary and tertiary carbon?
- A.Pentane
- B.2-Methylbutane
- C.2,3-Dimethylbutane
- D.2-Bromo-2-methylpropane
- Answer
- Report
Answer : [C,D]
25.
Which of the following compounds will have only primary and secondary carbon?
- A.Propane
- B.2,2,3-Trimethylpentane
- C.2-Methylpropane
- D.n-Propylbromide
- Answer
- Report
Answer : [A,D]
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