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Friday, 9 October

JEE Main 2024 · ChemistryMultiple choiceAssertion–reasonMediumConceptual

JEE Main 9 April 2024, Shift 1, Chemistry Q66

Question 66 of 90 in this shift, Chemistry question 6 of 30, Section A.

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\mathrm{S_8} while oxygen exists as O2\mathrm{O_2}. Reason (R) : Oxygen forms pπ−pπp\pi-p\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 :
  1. (1)Both (A) and (R) are correct and (R) is the correct explanation of (A)
  2. (2)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  3. (3)(A) is correct but (R) is not correctOfficial answer
  4. (4)(A) is not correct but (R) is correct

Official answer

Option 3

NTA final key.

Chapter
The p-Block Elements
Topic
Periodic Trends
Idea tested
pπ-pπ Multiple Bonding in Second Period

Same topic in other shifts

All Periodic Trends questions
  1. 2 Apr 2026, Shift 1 · Q59Given below are two statements : Statement (I) : The first ionisation enthalpy of the elements Na, Mg, Cl and Ar follows the order Na > Mg…MediumTwo statements
  2. 2 Apr 2026, Shift 2 · Q58The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is:MediumSingle correct
  3. 2 Apr 2026, Shift 2 · Q59Given below are two statements: Statement I: The second ionization enthalpy of B, Al and Ga is in the order of B > Al > Ga. Statement II:…MediumSingle correct
  4. 4 Apr 2026, Shift 1 · Q59Given below are two statements: Statement I: The covalency of oxygen is generally two but it can exceed upto four. The oxidation state of…MediumTwo statements
  5. 4 Apr 2026, Shift 2 · Q57The 1st1^{\text{st}} ionization enthalpy for Mg is +737 kJ/mol. The most probable estimated value of the 2nd2^{\text{nd}} ionization…EasySingle correct
  6. 5 Apr 2026, Shift 1 · Q58Given below are two statements: Statement I: The correct order of electronegativity of fluorine, oxygen and nitrogen is F > O > N.…EasyTwo statements

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.