Which of the following statements about meso compounds is not true?

Which compound is a diastereomer of the structure shown?

Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram.                                       ​ A B C D Conformation A is represented by Roman numeral ____. (enter the Roman number. No other numbers will be accepted)

Which of the following is the correct structure for the compound (S)-3-methylheptane?

Identify the correct chair confirmations of the following compound and then indicate which one is least stable.

Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram.                                       ​ A B C D Conformation C is represented by Roman numeral ____. (enter the Roman number. No other numbers will be accepted)

Is the double bond of Singulair® (montelukast), a medication used to manage asthma, classified as E, Z, or neither?

Which of the following structures has the S configuration?  

Which of the following is the correct wedge and dash structure for the following Newman projection?

What is the percentage of the S enantiomer in a sample of carvone that has a specific rotation of -30, given that the specific rotation of (R)-carvone is −61?