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JEE Main
Exam
JEE Main
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main · Chemistry · p Block Elements (Group 13 & 14)

Observe the following statements regarding ( C_ 60 ). i. All...

Observe the following statements regarding (C60\mathrm{C}_{60}). i. All carbons are sp2s p²-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. (C−C\mathrm{C}-\mathrm{C}) bond lengths in it are 143.5 and (138.3 pm\mathrm{pm}). vi. It is prepared by heating graphite in an electric arc in the presence of oxygen. The correct statements are

Options

  1. Ai, ii, iii, iv, v
  2. Bi, ii, iv, v only
  3. Ci, ii, iv, vi only
  4. Di, ii, iii only

Correct answer

B. i, ii, iv, v only

Step-by-step solution

In (C60\mathrm{C}_{60}), all carbon atoms are sp2s p²-hybridised. It contains 12 rings of five carbon each and 20 rings of six carbon each. It is anti-aromatic with spherically surrounded by (π\pi)-electrons. It is a pure form of carbon. (C−C\mathrm{C}-\mathrm{C}) bond length in it are 143.5 and (138.3 pm\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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