Quiz 5 :
Stereoisomerism

Which of the following objects is chiral?

Chiral molecules that have nonsuperimposable mirror images are called:

Which of the following molecules has a mirror plane of symmetry?

What is the process that separates enantiomers?

A 50:50 mixture of enantiomers

The terms that best describe the isomeric relationship between staggered and eclipsed ethane are

Which of the molecules below has a stereogenic carbon atom?

How many stereogenic centers are present in the following molecule?

How many stereogenic centers are present in the following molecule?

How many chiral stereoisomers can be drawn for CH₃CHClCHBrCH₃?

How many stereogenic carbons are in the following molecule?

How many stereoisomers can be obtained from the monobromination of pentane?

How many stereoisomers with the formula CH₃CHICHICH₃ are possible?

The number of stereogenic centers in progesterone is: progesterone (no stereochemistry shown)

The total number of possible stereoisomers of is:

The total number of possible stereoisomers of 1-bromo-2-chlorocyclopentane is:

An unknown sample is tested with a polarimeter for optical activity.The results of the test required no movement of the analyzer.What samples would give this result?

An unknown sample is tested with a polarimeter for optical activity.The results of the test require movement of the analyzer.What samples would give this result?

Which of the following statements about enantiomers is INCORRECT?

The observed rotation for 100 mL of an aqueous solution containing 1 g of sucrose, placed in a 2-decimeter sample tube, is +1.33° at 25°C.What is the specific rotation of sucrose?

Which of the following molecules are the same?

Which of the three molecules below is the enantiomer of the following molecule?

Which of the three molecules below is a diastereomer of the following molecule?

Which of the following are achiral conformers?

Which of the following would constitute a pair of enantiomers?

The terms that best describe the relationship between (2R,3S)-2,3-butanediol and (2S,3S)-2,3-butanediol are

The terms that best describe the relationship between (2R,3S)-2-bromo-3-chlorobutane and (2S,3R)-2-bromo-3-chlorobutane are

Which of the following statements about the pair of molecules shown below is not true?

According to the R-S convention, which priority is correct for the following sets of groups?

(R)-2-chlorobutane is correctly represented by which of the following:

Which of the following groups has the highest priority for assigning R-S absolute configuration?

The correct IUPAC name for the following molecule is:

Which of the following structures is (E)-2,3-dichloro-2-pentene?

Of the following structures, how many are classified "E"?

Of the following structures, how many are classified "Z"?

Which of the following structures depicts (R)-3-ethyl-2,3-dimethylhexane?

The priority order for R/S nomenclature is

Which name describes the following structure?

Which name describes the following structure?

What is correct name for the following structure?

What is the absolute configuration around C-2 and C-3?

The absolute configuration around the stereogenic center of the molecule below is:

The Fischer projection formula for (S)-lactic acid (2-hydroxypropanoic acid) is

The Fischer projection that represents the same molecule as is:

Which one of the following structures represents a meso compound?

When (R)-3-bromo-2-methyl-1-butene is reacted with HBr, two stereoisomers are formed.What is the relationship of these stereoisomers?

Treating 1-butene with HBr produces a product with one stereogenic carbon.What is the name of the product?

When (S)-3-bromo-1-butene is treated with HBr, two stereoisomeric products form.What is the relationship of these two products?

How many stereogenic carbons are produced from the following sequence of reactions?

Enantiomers may differ in the following property:

The product of addition of bromine to (R)-3-buten-2-ol will be