2. Multiple choice, 1 point. A correctly labeled bottle indicates that it contai

Question

2. Multiple choice, 1 point. A correctly labeled bottle indicates that it contains pure 2-pentanol. A correctly done test shows that there is no optical activity. Which of these statements is the best explanation? FOR CREDIT, PUT THE LETTER oF THE BEST ANSwER HERE: A. 2-Pentanol is not chiral. B. The sample is racemic. C. The sample is the meso diastereomer of 2-pentanol. D. There are two diastereomers of 2-pentanol that cancel their optical activity. E. 2-Pentanol does not show optical activity because it is stable when illuminated.

Explanation / Answer

B the sample is racemic. Stereoisomers: (S)-(+)-2-Pentanol · (R)-(-)-2-Pentanol. both will be present and hence overall no optical activity is seen

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