A Primary Key Field Cannot Be _____

question 39

Short Answer

A primary key field cannot be _____.

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Definitions:

Base

Substances that accept protons according to the Brønsted-Lowry definition or donate electrons according to the Lewis definition, often part of chemical reactions as reactants.

IR Spectroscopy

A technique used to identify molecular vibrations by measuring the absorption of infrared radiation, useful in determining molecular structure.

N-Butylamine

A primary amine with the formula CH3(CH2)3NH2, used in various industrial and chemical processes.

Diethylamine

An organic compound, a secondary amine with the formula (C2H5)2NH, widely used as a building block in organic synthesis.