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Q.

Which of the following is correct for Buckminster fullerenes C60 ?(I) It has 20 six- membered rings and 12 five-membered rings.(II) It has cage like soccer ball-shaped molecule.(III) Each C-atom is sp2 hybridised forming 3-bonds.4th electron is delocalised giving aromatic character.

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a

(I) only

b

(I) and (II)

c

(l) and (lll)

d

All (I), (II) and (III)

answer is D.

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Detailed Solution

Structural illucidation of Buckminster fullerenes C60 (I) It has 20 six- membered rings and 12 five-membered rings.(II) It has cage like soccer ball-shaped molecule.(III) Each C-atom is sp2 hybridised forming 3-bonds.4th electron is delocalised giving aromatic character.
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