Why Is the C-C-C Bond Angle in Propene 124

question 65

Multiple Choice

Why is the C-C-C bond angle in propene 124.7° instead of the predicted angle of 120°?

• A) because of the presence of a tetrahedral structure
• B) because of the presence of two trans methyl groups
• C) because of the interaction between the methyl group and the double-bonded carbon
• D) because of free rotation about the double-bonded carbons

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