Which Functional Group Does $\textbf{ not }$

question 16

Multiple Choice

Which functional group does $\textbf{ not }$ contain an oxygen atom?

• A) ester
• B) ether
• C) aldehyde
• D) amide
• E) amine

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Definitions:

Precambrian

A very long interval of geologic time, from the formation of the solid earth to the beginning of the Paleozoic; it is equivalent to 90% of geologic time.

Precambrian

Referring to the eon that constitutes the earliest part of Earth's history, which ended approximately 542 million years ago.

Geologic Time

The exceptionally long period of time dealt with by geology; the time extending from the formation of Earth to the beginning of written history.

Precambrian

The long span of time before the Phanerozoic Eon, making up around 88% of Earth's history, marked by the formation of the earth and early life forms.