Chemistry · 2019
JEE Main · 9 April 2019, Shift 1 · Q46
C_60, an allotrope of carbon contains:
$\displaystyle \mathrm{C}_{60}$, an allotrope of carbon contains :
Official answer
(1)
$\displaystyle 20$ hexagons and $\displaystyle 12$ pentagons.
More from p-Block Elements (Groups 13 and 14)
- The correct statements from the following are: Tl^3+ is a powerful oxidising agent Al^3+ does not get reduced easily Both Al^3+ and Tl^3+ are very…2025
- Given below are two statements: Statement I: In group 13, the stability of +1 oxidation state increases down the group. Statement II: The atomic size…2024
- Aqueous solution of which of the following boron compounds will be strongly basic in nature?2022
- Given below are the atomic numbers of some group 14 elements. The atomic number of the element with lowest melting point is:2025
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Boric acid is a weak acid. Reason…2022
- Given below are two statements: Statement I: The decrease in first ionization enthalpy from B to Al is much larger than that from Al to Ga. Statement…2023
- Match List - I with List - II. List - I (Si-Compounds) (CH_3)_4 Si (CH_3) Si(OH)_3 (CH_3)_2 Si(OH)_2 (CH_3)_3 Si(OH) List - II (Si-Polymeric/Other…2022
- Given below are two statements: Statement (I): The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group…2025
JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.