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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 6 April 2023, Shift 2, Chemistry Q68

Question 68 of 90 in this shift, Chemistry question 8 of 30, Section A.

Group-13 elements react with O2\mathrm{O_2} in amorphous form to form oxides of type M2O3\mathrm{M_2O_3} (M = element). Which among the following is the most basic oxide?
  1. (1)B2O3\mathrm{B_2O_3}
  2. (2)Al2O3\mathrm{Al_2O_3}
  3. (3)Ga2O3\mathrm{Ga_2O_3}
  4. (4)Tl2O3\mathrm{Tl_2O_3}Official answer

Official answer

Option 4

NTA final key.

Chapter
The p-Block Elements
Topic
Group 13 & 14
Idea tested
Acid-Base Nature of Group 13 Oxides

Same idea in other shifts

Asked 2× in all
  1. 26 Feb 2021, Shift 2 · Q37Which pair of oxides is acidic in nature ?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.