The Structure of the Polymer Used in a Freezer Wrap

question 78

Multiple Choice

The structure of the polymer used in a freezer wrap can be described mainly as follows:
[CCl₂ ⎯ CH₂ ⎯ CCl₂ ⎯ CH₂ ⎯ CCl₂ ⎯ CH₂ ⎯ CCl₂ ⎯ CH₂]_n
The chief monomer of this wrap would have which structure?

• A) CCl₂ = CH₂
• B) Cl₂C = CH₂ = CCl₂
• C) Cl₂C - CH₂
• D) CCl₂
• E) none of these

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Definitions:

Maxillae

are the paired upper jawbones in most vertebrates, playing key roles in the structures of the mouth and face.

Mandible

The lower jawbone in vertebrates, serving as the major component in the mechanism of chewing.

Zygomatic

Pertaining to the zygomatic bone, which is a bone on the side of the skull that forms the prominence of the cheek and part of the eye socket.

Biceps Brachii

A muscle of the upper arm that flexes the elbow and rotates the forearm, consisting of two heads: long and short.