Question

Observe the following formula 

 The groups/atoms in the plane of the paper are

• A. H, Cl, C
• B. CH$_3$, Cl
• C. H, CH$_3$, C
• D. CH$_3$, C$_2$H$_5$, C

Hint:

- Wedge-Dash Notation helps visualize 3D structures of molecules in a 2D format.
- Solid Wedges indicate bonds toward the viewer, dashed wedges indicate bonds away, and straight lines represent groups in the plane.
- Recognizing these conventions helps in stereochemistry and organic molecule analysis.

Answer 1

The Correct Option is D

To determine which groups/atoms are in the plane of the paper, we need to understand the stereochemistry depicted in the diagram. The notation used in the structure indicates different orientations in space:

• Solid wedge (thick line): Represents a bond coming out of the plane of the paper towards the observer.
• Dashed wedge (dashed line): Represents a bond going behind the plane of the paper.
• Plain line: Represents bonds that lie in the plane of the paper.

From the given diagram, we observe the following:

• The CH₃ group and the C₂H₅ group are depicted with plain lines, indicating that they are in the plane of the paper.
• The C (central carbon atom) is also in the plane as it serves as a reference for positioning the other groups.

Based on this analysis, the groups/atoms in the plane of the paper are CH₃, C₂H₅, C.

Thus, the correct answer is:

CH₃, C₂H₅, C