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Organic Chemistry 4th Edition By Janice Smith – Test Bank

Edition: 4th Edition

Format: Downloadable ZIP Fille

Resource Type: Test bank

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Organic Chemistry 4th Edition By Janice Smith – Test Bank

Chapter 4: Alkanes

1.

Which of the following statements about alkanes is not true?

A)

Alkanes are aliphatic hydrocarbons.

B)

Alkanes contain only C-C and C-H σ bonds.

C)

Alkanes are acyclic or cyclic.

D)

Acyclic alkanes have two fewer H atoms than cyclic alkanes with the same number of carbons.

2.

Which of the following statements about alkanes is true?

A)

Alkanes are aliphatic hydrocarbons having only C-C and C-H π bonds.

B)

Cyclic alkanes have two fewer H atoms than acyclic alkanes with the same number of carbons.

C)

Acyclic alkanes contain carbons joined in one or more rings.

D)

Acyclic alkanes have general molecular formula CnH2n.

3.

What is the molecular formula of an alkane that has twenty-three carbon atoms?

A)  C23H46    B)  C23H48    C)  C23H50    D)  C23H44

4.

What is the molecular formula of a cycloalkane that has six carbon atoms?

A)  C6H14    B)  C6H10    C)  C6H12    D)  C6H16

5.

What is the approximate C-C-C bond angle in propane?

A)  90°    B)  109.5°    C)  120°    D)  180°

6.

What is the hybridization of a carbon atom in an alkane?

A)  sp3    B)  sp2    C)  sp    D)  p

7.

How many constitutional isomers are there with the molecular formula C5H12?

A)  2    B)  3    C)  4    D)  5

8.

How many constitutional isomers are there with the molecular formula C6H14?

A)  2    B)  3    C)  4    D)  5

9.

Which of the following is not another representation for 2-methylbutane?

A)  I    B)  II    C)  III    D)  IV

10.

Which of the following compounds has primary, secondary, tertiary and quaternary carbon atoms?

A)

Pentane

C)

2,2-Dimethylpentane

B)

2-Methylpentane

D)

2,2,3-Trimethylpentane

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