Question

The incorrect statement regarding the structure of ${\mathrm{C}}_{60}$ is:

• A. It contains$12$ six-membered rings and $24$five membered rings.
• B. Each carbon atom forms three sigma bonds.
• C. The five-membered rings are fused only to six-membered rings.
• D. The six-membered rings are fused to both six and five-membered rings.

Answer 1

The correct option is A

It contains$12$ six-membered rings and $24$five membered rings.

The correct option is (A)

The Explanation for the correct answers is:

(A)

• Explanation: There are twelve pentagons and twenty hexagons. Their structure is made up of hexagonal, pentagonal, and occasionally even hexagonal rings.
• A brand-new class of carbon-based hollow, sphere-shaped molecules.
• Five-membered rings are exclusively connected to six-membered rings whereas six-membered rings are fused with both six-membered and five-membered rings.

Diagram:

The Explanation for the incorrect answers:

(B)

A carbon atom produces three sigma bonds. The sigma bond connecting the two carbon atoms does not have a node in the molecule's plane.

(C)

Only a six-membered ring can be created by joining together two five-membered rings.

(D)

A five-membered ring can only fuse with six-membered rings, whereas a six-membered ring can fuse with either five or six other rings. It is possible to fuse together both six-membered rings and five-membered rings.

Hence, the appropriate response is (A).