Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
-Statements:
(1) Enantiomers with more than three carbon atoms must have the same handedness.
(2) The molecules glyceraldehyde and dihydroxyketone each contain one chiral center.
(3) Glucose contain one more -OH group than does galactose.

Question

Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
-Statements: 
(1) Enantiomers with more than three carbon atoms must have the same handedness.
(2) The molecules glyceraldehyde and dihydroxyketone each contain one chiral center.
(3) Glucose contain one more -OH group than does galactose.

Quizplus · Accepted Answer

1) False. Enantiomers are mirror images of each other and must have opposite handedness, regardless of the number of carbon atoms. 2) False. Glyceraldehyde has one chiral center, but dihydroxyacetone has no chiral centers because it is a symmetrical molecule. 3) False. Glucose and galactose both contain the same number of -OH groups; they differ in the orientation of the -OH group on one of their carbons.

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