14.Which of the following could have both methyl groups in an equatorial orientation? Ans:B 15.Which of the following compounds has the lowest heat of combustion per CH2 group? A)cyclopropane cyclobutanePage 7 14. Which of the following could have both methyl groups in an equatorial orientation? A) CH3 CH3 B) CH3 CH3 C) CH3 CH3 D) H3C CH3 E) CH3 H3C Ans: B 15. Which of the following compounds has the lowest heat of combustion per CH2 group? A) cyclopropane D) cyclohexane B) cyclobutane E) All have equal ΔHcombustion. C) cyclopentane Ans: D