Rank the Following Compounds in Order of Increasing Reactivity Toward

question 11

Multiple Choice

Rank the following compounds in order of increasing reactivity toward the nucleophilic hydride reagent, NaBH₄.

• A) I < II < III
• B) III < II < I
• C) II < III < I
• D) II < I < III

---

Definitions:

Dopamine

A neurotransmitter that affects the ability to perceive pleasure, voluntary movement, and learning and memory; it is involved in Parkinson’s disease and appears to play a role in schizophrenia.

Norepinephrine

A neurotransmitter whose action is similar to that of the hormone epinephrine and that may play a role in depression.

Successive Approximations

In operant conditioning, a series of behaviors that gradually become more similar to a target behavior.

Target Behavior

A specific behavior that is selected for change or intervention in a behavior modification program.