Test Bank For Organic Chemistry 9th Edition by Francis Carey

Chapter 2: Hydrocarbon Frameworks – Alkanes

1. Alkanes are characterized by the general molecular formula:

   A) CnH2n-2 B) CnH2n C) CnH2n+2 D) CnH2n+4 Ans: C

2. Cycloalkanes are characterized by the general molecular formula:

   A) CnH2n-2 B) CnH2n C) CnH2n+2 D) CnH2n+4 Ans: B

3. The carbon-carbon sigma bond in ethane is formed by overlap of which two orbitals?

A) 2p-2p B) sp-sp C) sp2-sp2 D) sp3-sp3 Ans: D

4. What is the IUPAC name of the following compound?
   1. A) 4,4-dimethylpentane C) 2,2-dimethylpentane
   2. B) 1-tert-butylpropane D) 1,1,1-trimethylbutane

   Ans: C

5. The correct IUPAC name of the following compound is
   1. A) 2-ethyl-3,5-dimethylheptane. C) 3,4,4-trimethyloctane.
   2. B) 6-ethyl-5,5-dimethylheptane. D) 5,5,6-trimethyloctane.

   Ans: C

6. The common name of the following group is

   A) n-butyl. B) sec-butyl. C) isobutyl. D) tert-butyl. Ans: B

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Chapter 2 Hydrocarbon Frameworks – Alkanes

7. Which one of the following is 2,2,5-trimethylhexane?

A) (CH3)2CHCH2C(CH3)3 C) B) (CH3)2CHCH2CH2C(CH3)3 D) Ans: B

8. The correct IUPAC name of the following is

   A) 2,4,7-trimethylnonane. C) B) 3,6,8-trimethylnonane. D) Ans: A

9. What is the IUPAC name of the following?

   A) 5,6-diethylhexane C) B) 2,3-diethylhexane D) Ans: D

10. What is the IUPAC name of the following?

    A) 1-ethyl-4.4-dimethylcyclopentane C) B) 1-ethyl-3,3-dimethylcyclopentane D) Ans: C