________ Is Commonly Used as a Reference in NMR Spectroscopy; $\delta=0$

question 160

Short Answer

________ is commonly used as a reference in NMR spectroscopy; its signal is assigned $\delta=0$ in both ¹H and ¹³ C NMR spectroscopy.

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Definitions:

Incompatible demands

Situations where two or more obligations, expectations, or requirements cannot be fulfilled at the same time, leading to conflict or stress.

Approach-avoidance

A conflict occurring when a single goal has both attractive and unattractive aspects, leading to ambivalence about pursuing it.

Avoidance-avoidance

A conflict situation where a choice must be made between two undesirable options.

Approach-approach

A conflict situation where an individual must choose between two desirable outcomes.