Many of the Reactions Studied in This Chapter Are Stereospecific

question 37

Multiple Choice

Many of the reactions studied in this chapter are stereospecific.Why are stereospecific reactions important?

• A)When a reaction produces a mixture of enantiomers,it is often very difficult to separate them.A mixture of products is often not useful.
• B)Often stereoisomers of a particular compound will have very different biological effects on an organism.Only one isomer is biologically helpful,and the other may be harmful.
• C)Often only one stereoisomer is biologically active,and coupling reactions are often used for the production of biological materials.
• D)All of the choices are true.

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Definitions:

Condition Precedent

A condition in a contract that must be met before a party’s promise becomes absolute.

Condition Subsequent

A condition in a contract that operates to terminate a party’s absolute promise to perform.

Express Condition

A clearly stated, specific requirement within a contract that must be met for the contract to be fulfilled or an obligation to become due.

Contractual Obligation

A duty or commitment that one party is legally required to perform as per the terms of a contract.