Question:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Both rhombic and monoclinic sulphur exist as S8_8 while oxygen exists as O2_2.
{Reason (R): Oxygen forms pπp\pi-pπp\pi multiple bonds with itself and other elements having small size and high electronegativity like C, N, which is not possible for sulphur.
In the light of the above statements, choose the most appropriate answer from the options given below:

Updated On: Nov 23, 2024
  • Both (A) and (R) are correct and (R) is the correct explanation of (A).
  • Both (A) and (R) are correct but (R) is not the correct explanation of (A).
  • (A) is correct but (R) is not correct.
  • (A) is not correct but (R) is correct.
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The Correct Option is C

Solution and Explanation

  • Assertion (A) is correct because sulphur exists as S8 S_8 due to its ability to form crown-shaped structures. Oxygen exists as O2 O_2 due to its smaller size and ability to form pπ p\pi -pπ p\pi bonds.
  • Reason (R) is incorrect because sulphur’s inability to form pπ p\pi -pπ p\pi bonds is due to its larger size, which prevents effective overlap of orbitals.
  • Thus, (A) is correct, but (R) is not the correct reason for (A).
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