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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 26 July 2022, Shift 1, Chemistry Q67

Question 67 of 90 in this shift, Chemistry question 7 of 30, Section A.

Borazine, also known as inorganic benzene, can be prepared by the reaction of 3-equivalents of “X” with 6-equivalents of “Y”. “X” and “Y”, respectively are :
  1. (1)B(OH)3\mathrm{B(OH)_3} and NH3\mathrm{NH_3}
  2. (2)B2H6\mathrm{B_2H_6} and NH3\mathrm{NH_3}Official answer
  3. (3)B2H6\mathrm{B_2H_6} and HN3\mathrm{HN_3}
  4. (4)NH3\mathrm{NH_3} and B2O3\mathrm{B_2O_3}

Official answer

Option 2

NTA final key.

Chapter
The p-Block Elements
Topic
Group 13 & 14
Idea tested
Borazine Structure and Reactivity

Same idea in other shifts

Asked 3× in all
  1. 13 Apr 2023, Shift 1 · Q69The incorrect statement from the following for borazine is:MediumSingle correct
  2. 9 Jan 2020, Shift 2 · Q35The reaction of H3N3B3Cl3\mathrm{H_3N_3B_3Cl_3} (A) with LiBH4\mathrm{LiBH_4} in tetrahydrofuran gives inorganic benzene (B). Further, the reaction…MediumSingle correct

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.