Question

10. Which of the following is the highest energy conformer of the following compound? A. B. C. D. 11. What is the IUPAC name of the following compound? A. 1-ethyl-2,3-dimethylcyclopentane B. 1-ethyl-2,3-dimethylpentane C. 3-ethyl-1,2-dimethylcyclopentane D. 2,3-dimethyl-1-ethylcyclopentane E. 1-ethyl-2,3-methylcyclopentane 12. What is the IUPAC name of the following compound? A. 1,3,3-trimethylcyclopentane B. 1-ethyl-3-methylcyclopentane C. 1,1,3-trimethylpentane D. 1,1,3-trimethylcyclopentane

          10. Which of the following is the highest energy conformer of the following compound?
A. B. C. D.
11. What is the IUPAC name of the following compound?
A. 1-ethyl-2,3-dimethylcyclopentane
B. 1-ethyl-2,3-dimethylpentane
C. 3-ethyl-1,2-dimethylcyclopentane
D. 2,3-dimethyl-1-ethylcyclopentane
E. 1-ethyl-2,3-methylcyclopentane
12. What is the IUPAC name of the following compound?
A. 1,3,3-trimethylcyclopentane
B. 1-ethyl-3-methylcyclopentane
C. 1,1,3-trimethylpentane
D. 1,1,3-trimethylcyclopentane

10. Which of the following is the highest energy conformer of the following compound?
A. B. C. D.
11. What is the IUPAC name of the following compound?
A. 1-ethyl-2,3-dimethylcyclopentane
B. 1-ethyl-2,3-dimethylpentane
C. 3-ethyl-1,2-dimethylcyclopentane
D. 2,3-dimethyl-1-ethylcyclopentane
E. 1-ethyl-2,3-methylcyclopentane
12. What is the IUPAC name of the following compound?
A. 1,3,3-trimethylcyclopentane
B. 1-ethyl-3-methylcyclopentane
C. 1,1,3-trimethylpentane
D. 1,1,3-trimethylcyclopentane

Added by Rosa R.

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