What is the barrier to rotation about the C-C bond in ethane? Consider the structure of trans-1,4-dimethylcyclohexane. Which statemen is fully correct?

What is the barrier to rotation about the C-C bond in ethane?

A. about 1.0 kcal/mol B. about 3.0 kcal/mol

C. about 2.0 kcal/mol D. about 2.5 kcal/mol

Consider the structure of trans-1,4-dimethylcyclohexane. Which statemen is fully correct?

A. Trans methyl groups favor chair and both are equatorial.

B. Trans methyl groups favor chair and both are axial.

C. Trans methyl groups favor twist-boat conformation.

D. Trans methyl groups favor chair and are axial and equatorial.

Expert Solution

queen_honey_blossom answered 2 years ago

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