Stereochemistry Introduction Quiz

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What is the characteristic that distinguishes isomers from one another?

Their molecular structures

Their chemical properties

At least one physical characteristic (correct)

Their atomic masses

What is the field of chemistry that deals with the three-dimensional arrangements of atoms in molecules?

Inorganic chemistry

Stereochemistry (correct)

Organic chemistry

Biochemistry

What is the relationship between symmetry and chirality?

Symmetric objects are symmetric

Symmetric objects are chiral

Asymmetric objects are achiral

Asymmetric objects are chiral (correct)

Why do enzymes only recognize a particular enantiomer?

Because they are specific for their substrates' stereochemistry Signup and view all the answers

What is the most prevalent type of chirality center in organic chemistry?

Carbon atoms Signup and view all the answers

What is the characteristic that distinguishes enantiomers from diastereomers?

Their mirror images Signup and view all the answers

What is the direction of rotation of the plane of polarized light by a dextro-rotato compound?

Clockwise or right. Signup and view all the answers

What is the characteristic of compounds that are asymmetrical in nature?

They can rotate the plane of polarized light. Signup and view all the answers

What is the primary reason thalidomide was initially used in the 1950s?

To treat morning sickness during pregnancy. Signup and view all the answers

What is the current status of thalidomide usage?

It is being used to treat a skin condition and cancer, and is being investigated for other disorders. Signup and view all the answers

What is the characteristic of monochromatic light?

It consists of only one wavelength. Signup and view all the answers

What is the term for the ability of a compound to rotate the plane of polarized light?

Optical activity. Signup and view all the answers

What is the method of labeling asymmetric carbon atoms of molecules with letters called?

Cahn-Ingold-Prelog method Signup and view all the answers

What does the prefix 'rac' or 'racem' indicate in the IUPAC name of a compound?

A mixture of equal amounts of enantiomers Signup and view all the answers

What is the term for a mixture consisting of equal amounts of enantiomers?

Racemic mixture Signup and view all the answers

What is the symbol used to indicate a racemic mixture before the IUPAC name of a compound?

(±) Signup and view all the answers

What is the term for the direction in which the order of group priorities progresses in a clockwise direction?

R stereoisomer Signup and view all the answers

Who discovered the first racemate?

Louis Pasteur Signup and view all the answers