Images Are Mental Categories for Classifying Specific People, Things, or Events

question 20

True/False

Images are mental categories for classifying specific people, things, or events.

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Definitions:

Singlets

In spectroscopy, a single peak or line that represents a non-split energy level.

DEPT-90

A nuclear magnetic resonance (NMR) technique that distinguishes between CH and CH3 groups in a molecule.

DEPT-135

An NMR spectroscopy technique that distinguishes between carbon atoms attached to hydrogen atoms, depending on the number of hydrogen atoms (CH, CH2, or CH3).

Quaternary

Referring to carbon atoms bonded to four different groups, especially relevant in organic chemistry when discussing carbon structure and stereochemistry.