Fischer Projection Formula

In a Fischer projection, what do the vertical lines represent about the direction of bonds in 3D space?

• Bonds projecting toward the viewer.

• They Represent Chemistry.

• They Indicate bonds going behind the plane.

• Bonds that are part of a ring structure.

Which statement best defines a racemic mixture?

• A 50:50 combination of two identical molecules that are superimposable mirror images of each other.

• 50:50 combination of two enantiomers, which are non-superimposable mirror images

• A mixture of diastereomers with different physical properties

• A compound that rotates plane‑polarized light strongly clockwise

What is the expected behavior of a racemic mixture composed of equal amounts of (+) and (−) enantiomers?

• A racemic mixture is optically active because the effects of both enantiomers add together.

• A racemic mixture is optically inactive because the rotations of the (+) and (−) enantiomers cancel each other out.

Which property typically distinguishes diastereoisomers from enantiomers?

• Diastereoisomers have identical physical properties such as melting point and boiling point

• Diastereoisomers can be separated by ordinary physical methods due to differing physical properties

What does the Fischer Projection Rule Dictate?

• The main carbon chain should be vertical, with the most oxidized carbon positioned at the top, enhancing clarity in representing chiral centers and molecular structure.

• The main carbon chain should be Horizontal, with the most oxidized Atom positioned at the bottom, enhancing clarity in representing chiral centers and molecular structure.

What is the Difference Between D and L Configurations of Carbohydrates in a D-Glucose Fischer Projection

• D-form has OH on the right, while L-form has it on the left.

• The difference Between D-form and L-form is the letters

• D-form has OH on the Left, while L-form has it on the Right.

• There is No Difference in Configurations

According to the summary, which feature makes meso compounds achiral overall?

• Internal plane of symmetry that cancels chirality

• Being in the D-form rather than L-form

Which statement about racemic mixtures is correct based on the text?

• They are optically active because enantiomers reinforce each other.

• They form only from diastereomers, not enantiomers.

• They are optically inactive since opposite rotations cancel out.

• They cannot influence drug development.

In the 'Example Of Lactic Acid' R and S forms, what rotations do they spin?

• (R)-lactic acid rotates light clockwise, while (S)-lactic acid rotates light counterclockwise.

• (R)-lactic acid rotates light Counterclockwise, while (S)-lactic acid rotates light Clockwise.

How many Unique Forms could Tartaric Acid Structures have?

• One

• 2

• Three