QuestionJune 28, 2025

Which of the following cycloalkanes has the most angle strain? Select the single best answer. Cyclopentane Cyclobutane C Cyclohexane Cyclopropane

Which of the following cycloalkanes has the most angle strain? Select the single best answer. Cyclopentane Cyclobutane C Cyclohexane Cyclopropane
Which of the following cycloalkanes has the most angle strain? Select the single best answer.
Cyclopentane
Cyclobutane
C Cyclohexane
Cyclopropane

Solution
4.5(326 votes)

Answer

Cyclopropane Explanation 1. Identify angle strain in cycloalkanes Angle strain occurs when bond angles deviate from the ideal tetrahedral angle of 109.5°. 2. Compare typical bond angles Cyclopropane has bond angles of approximately 60°, cyclobutane around 90°, cyclopentane near 108°, and cyclohexane close to 109.5°. 3. Determine deviation from ideal angle Cyclopropane deviates most significantly from 109.5°, causing the highest angle strain.

Explanation

1. Identify angle strain in cycloalkanes<br /> Angle strain occurs when bond angles deviate from the ideal tetrahedral angle of 109.5°.<br /><br />2. Compare typical bond angles<br /> Cyclopropane has bond angles of approximately 60°, cyclobutane around 90°, cyclopentane near 108°, and cyclohexane close to 109.5°.<br /><br />3. Determine deviation from ideal angle<br /> Cyclopropane deviates most significantly from 109.5°, causing the highest angle strain.
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