Which of the following is not correct regarding the wedge-and-dashed representation?

Options

A. (1) Bonds that project upwards out of the plane of the paper are indicated by a wedge .
B. (2) Bonds that lie behind the plane are indicated with a dashed wedge .
C. (3) Bonds that lie in the plane of the page are indicated by a line `(-)`.
D. (4) For tetrahedral `C` atoms, we draw the two bonds that are in the plane of the page with an an angle of approximately `111^(@)` between them.

Answer

D

Explanation

The angle is approximately `109^(@)`. Notice that a proper three-dimensional perpective requires the wedge-dashed wedge bonds to be drawn near each other on the page, i.e., the atom in front nearly eclipses the atom behind.