Question

Which of the following does not contain a C3 axis

(A) POCI,
(B) [NH]*
(C)
[H,O]"
(D) CIF
3
;
[P.T.O.​

Answer 1

Answer:

which of the following does not contain a c3axis choose

Answer 2

ClF₃ does not contain a C₃ axis. (Option D)

• The symmetry axis C₃ is the axis upon which the equivalent molecule may be created by rotating it by 120°.
• By rotating it by 120° about the axis running through the middle of the ring and orthogonal to its plane, the same molecule is created.
• As a result, ClF₃ does not feature a C₃ symmetry axis.
• Cyclohexane has a C₃ axis of symmetry in the chair form.

Note;

The options given in the question are not clear. The following is the correct question.

Which of the following does not contain a C3 axis?

1. POCl₃
2. [NH₄]+
3. [H₃O]+
4. ClF₃