Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET201923 Apr 2019Morning ShiftChemistryp Block Elements (Group 13 & 14)Actual

Observe the following statements regarding ( 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. ( C - C ) bond lengths in it are 143.5 and (138.3 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 ( 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 ( )-electrons. It is a pure form of carbon. ( C - C ) bond length in it are 143.5 and (138.3 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.

Practice p Block Elements (Group 13 & 14) on Quantrex Academy →

More from p Block Elements (Group 13 & 14)

Identify the catalyst used to transform carbon monoxide from water gas into carbon dioxide 2026Which from following oxides is amphoteric in nature? 2026What is the formula of Tin (IV) oxide? 2026Which from the following is NOT polymorphic form of silica ? 2026What is the nature of Al ₂ O ₃ ? 2026Select the correct statements from the following. A) Aluminium liberates H ₂ gas with dil. HCl but not with aqueous NaOH . B) Formula of sodium metaborate is Na ₃ BO ₃ C) Boric aci 2025The number of amphoteric oxides from the following is CO ₂, GeO ₂, SnO ₂, PbO ₂, CO , GeO , SnO , PbO 2025Which of the following reactions give H ₂ as one of the products? (Reactions are not balanced) I) NaBH ₄+ I ₂ II) B ₂ H ₆+ N ( CH ₃ )₃ III) A l+ NaOH + H ₂ O IV) BF ₃+ NaH 2025 Full p Block Elements (Group 13 & 14) list All AP EAMCET PYQs