Observe the following statements regarding $\mathrm{C}_{60}$. i. All carbons are $s p^2$-hybridised. ii. It contains 12 rings of five carbons each and 20 rings of six carbons each. iii. It is a non-aromatic compound. iv. It is pure form of carbon. v. $\mathrm{C}-\mathrm{C}$ bond lengths in it are 143.5 and $138.3 \mathrm{pm}$. vi. It is prepared by heating graphite in an electric arc in the presence of oxygen. The correct statements are

Question

Observe the following statements regarding $\mathrm{C}_{60}$. i. All carbons are $s p^2$-hybridised. ii. It contains 12 rings of five carbons each and 20 rings of six carbons each. iii. It is a non-aromatic compound. iv. It is pure form of carbon. v. $\mathrm{C}-\mathrm{C}$ bond lengths in it are 143.5 and $138.3 \mathrm{pm}$. vi. It is prepared by heating graphite in an electric arc in the presence of oxygen. The correct statements are, i, ii, iii, iv, v, i, ii, iv, v only, i, ii, iv, vi only, i, ii, iii only

MARKS App · Accepted Answer

In $\mathrm{C}_{60}$, all carbon atoms are $s p^2$-hybridised. It contains 12 rings of five carbon each and 20 rings of six carbon each. It is anti-aromatic with spherically surrounded by $\pi$-electrons. It is a pure form of carbon. $\mathrm{C}-\mathrm{C}$ bond length in it are 143.5 and $138.3 \mathrm{pm}$. It is prepared by heating graphite in an electric arc under inert condition (He gas). Thus, statements (i), (ii), (iv) and (v) are correct.

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