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Question

The incorrect statement regarding the structure of C60 is:


A

It contains12 six-membered rings and 24five membered rings.

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B

Each carbon atom forms three sigma bonds.

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C

The five-membered rings are fused only to six-membered rings.

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D

The six-membered rings are fused to both six and five-membered rings.

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Solution

The correct option is A

It contains12 six-membered rings and 24five 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: 10976_Chemistry_62b93a3d8a09ec5f9ec73b7f_EL_Introduction_To_Carbon_Family-22_033966.jpg

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).


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