Which of the following should be nonplanar?
A)only I
B)only II
C)only III
D)I and III

Name: Which of the following should be nonplanar? A)only I B)only II C)only III D)I and III
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Question

Which of the following should be nonplanar? 
A)only I 
B)only II 
C)only III 
D)I and III

Quizplus · Accepted Answer

In III, the TB4940 molecule has six atoms in the ring, including four carbons and two nitrogens. To minimize the electron repulsion, the nitrogen atoms introduce a deviation in the bonding angles, making the molecule nonplanar. In contrast, both I and II are planar molecules with all atoms in the same plane.

Which of the Following Should Be Nonplanar