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Saturday, 31 October

JEE Main 2024 · ChemistryMultiple choiceAssertion–reasonEasyConceptual

JEE Main 27 January 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) : Melting point of Boron (2453 K) is unusually high in group 13 elements. Reason (R) : Solid Boron has very strong crystalline lattice. 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)Official answer
  2. (2)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  3. (3)(A) is true but (R) is false
  4. (4)(A) is false but (R) is true

Official answer

Option 1

NTA final key.

Chapter
The p-Block Elements
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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 108 of the 174 JEE Main shifts held from 2017 to 2026.