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Select all the statements that correctly describe the procedure for drawing a Newman projection.
A. There will be 3 lines drawn directly to each C atom.
B. A dot drawn at the center of the circle represents the front C.
C. A circle is used to represent the back carbon.
D. A Newman projection considers one C-C bond at a time.
E. The bonds for both the front and back C atoms are drawn as lines meeting at the center of the circle.

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Answer:

A dot drawn at the center of the circle represents the front C.

A circle is used to represent the back carbon.

There will be 3 lines drawn directly to each C atom.

Explanation:

A Newman projection is an alternative way to view a molecule instead of the sawhorse projection.

In a Newman projection, the front atom is shown as a dot at the center of a big circle while the back atom is shown as a circle. Three lines indicating binds to substituents are drawn to each carbon atom directly.

This method of representation of molecules was introduced by Melvin Spencer Newman in 1952 to partly replace Fischer projections. Fischer projections did not adequately show the conformer of a compound.

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