Question

40) Circle the following conformers with the highest energy CH H.C CH H н.с H CHO CHy -H -CH н.с HI 41) Circle the following with the lowest energy conformer of 2,3-dimethybutane CH CH, HC HC. сH CH H HC HC нс CHy CH HC MC CHy 42) Circle the following with the most stable conformation of cis-1-ethyl-3 isopropylcyclohexane? IV Using<, rank the following alkanes in order of increasing boiling point 43)

Answer 1

40) The one with the highest energy, is the one with the closest substitutions, Option II.

41) The one with the lowest energy, is the one with the farthest substitutions, Option II.

42) The most stable is the one that is more balanced, Option I.

43) The more ramified, the higher its boiling point:

I> II> III> IV

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