Question

10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B) a racemic mixture C) every achiral compound D) a meso compound E) all the above 11) If (S)-glyceraldehyde has a specific rotation of -8.7, what is the specific rotation of (R)-glyceraldehyde? A) +8.7 B) -8.7 C) 0.0 D) cannot be determined from the information given 12) What is the relationship between the following compounds? HCI CH - CH₂ CH3 HEC HCI HEC X сін A) enantiomers B) identical compounds C) diastereomers D) constitutional isomers E) conformational isomers 13) Which of the following are meso compounds? A) trans-1,3-dimethylcyclohexane B) trans-1,4-dimethylcyclohexane C) cis-1,4-dimethylcyclohexane D) trans-1,2-dimethylcyclohexane E) cis-1,3-dimethylcyclohexane SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 14) Is the compound shown below chiral or achiral? 14) OH

Answer 1

E. All the above] - ® The correct option is ☺ A.+8. 7] 12 [A. enantiomers) BB.C.E. (14) Achival.