Chapter 4 Multiple Choice Questions

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. Which structure is of a compound different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which structure is of a compound different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of (a)-(d) is the most stable conformation?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of (a)-(d) is the most unstable conformation?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of (a)-(d) is the most stable conformation?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of (a)-(d) is the most unstable conformation?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which is the most stable structure of 1-isopropyl-4-methylcyclohexane?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which structure is different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which structure is different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which structure is different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which compound is different from the others?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which compound is different from the others?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which is the most stable conformation?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of (a)-(d) is the most stable?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of (a)-(d) is the most unstable?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which structure is different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which structure is different from the following?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which conformation is most unstable?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of the following statements regarding cycloalkanes is wrong?

Any disubstituted cycloalkane can have cis-trans isomers. correct incorrect

The planar form of any cycloalkane with a ring larger than cyclopropane will not be the most stable conformation. correct incorrect

Cyclopentane is nonplanar to avoid the torsional strain between adjacent C-H bonds. correct incorrect

The least strained form of any unsubstituted cycloalkane is the chair conformation of cyclohexane. correct incorrect

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. Which of the following statements regarding chair cyclohexane is wrong?

The dihedral angle of the two axial bonds on adjacent carbons is 180°. correct incorrect

The dihedral angle of the two equatorial bonds on adjacent carbons is 60°. correct incorrect

The dihedral angle between the axial bond and the equatorial bond on adjacent carbons is 120°. correct incorrect

The axial hydrogen atoms on C1, C3, and C5 form an equilateral triangle (as do C1, C3, and C5 themselves and the equatorial hydrogens on them). correct incorrect