Which Statement Is NOT True for Auxiliary Complexing Agents

question 14

Multiple Choice

Which statement is NOT true for auxiliary complexing agents?

• A)Auxiliary complexing agents prevent the precipitation of metal hydroxide at high pH.
• B)Auxiliary complexing agents are chosen to bind metal strong enough to prevent metal hydroxide precipitation but weak enough to be displaced by EDTA.
• C) Is the effective formation constant for fixed pH and fixed concentration auxiliary complexing agent.
• D)Low concentrations auxiliary complexing agent obliterates the end point of the titration.

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Definitions:

CR

A common abbreviation for Conditioned Response, which is an automatic response established by training to an ordinarily neutral stimulus.

UCR

Unconditioned Response, a naturally occurring reaction to an unconditioned stimulus.

Stimulus Generalization

A psychological phenomenon where a conditioned response starts occurring in response to stimuli that are similar but not identical to the original conditioned stimulus.

Conditioned Response

A reflexive reaction developed through training in response to a stimulus that is normally neutral.