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Saturday, 31 October

JEE Main · Chemistry · The p-Block Elements

Acidic and Basic Character of Oxides

JEE Main asked Acidic and Basic Character of Oxides 12 times in 11 of the 108 shifts Lumi analysed, in 2020, 2022, 2024 and 2026. It belongs to Periodic Trends, in The p-Block Elements (Chemistry). The longest wait between two years asking it was 2 years. In 2020, 2022, 2024 and 2026 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
12
in 11 shifts
Years
4 of 8
First asked
2020
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2022, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.150.30’170.17’200’210.17’220’230.14’240’250.22’26

Raw count: 2017: 0 in 1 shift · 2020: 2 in 12 shifts · 2021: 0 in 24 shifts · 2022: 5 in 24 shifts · 2023: 0 in 12 shifts · 2024: 3 in 18 shifts · 2025: 0 in 8 shifts · 2026: 2 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20262 of 9
  • 20250 of 8
  • 20243 of 18
  • 20230 of 12
  • 202224 of 24
  • 20210 of 24
  • 20202 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: recall.

  • Identify set of oxides by nature
  • Statement i/ii on nature of oxides

Difficulty

Easy 5Medium 7Hard 0

1 of the 12 questions had a numerical answer.

Every question

All 12 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 5 Apr 2026, Shift 2 · Q58Given below are two statements : Statement I : The number of pairs among [Al2O3,Cr2O3]\mathrm{[Al_2O_3, Cr_2O_3]}, [Cl2O7,Mn2O7]\mathrm{[Cl_2O_7, Mn_2O_7]},…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. 31 Jan 2024, Shift 1 · Q67Consider the oxides of group 14 elements SiO2\mathrm{SiO_2}, GeO2\mathrm{GeO_2}, SnO2\mathrm{SnO_2}, PbO2\mathrm{PbO_2}, CO and GeO. The…MediumSingle correct
  4. 30 Jan 2024, Shift 2 · Q66Given below are two statements: Statement - I: Along the period, the chemical reactivity of the elements gradually increases from group 1…EasyTwo statements
  5. 1 Feb 2024, Shift 1 · Q87Among the following oxides of p-block elements, number of oxides having amphoteric nature is ________. Cl2O7\mathrm{Cl_2O_7}, CO,…MediumNumerical value
  6. 28 Jun 2022, Shift 2 · Q66Match List - I with List - II : List - I (Oxide) | List - II (Nature) (A) Cl2O7\mathrm{Cl_2O_7} | (I) Amphoteric (B) Na2O\mathrm{Na_2O} | (II)…EasyMatch the list
  7. 28 Jun 2022, Shift 2 · Q69Among the following, basic oxide is :EasySingle correct
  8. 28 Jun 2022, Shift 1 · Q67Given below are two statements : Statement I :The pentavalent oxide of group-15 element, E2O5\mathrm{E_2O_5}, is less acidic than trivalent…MediumTwo statements
  9. 24 Jun 2022, Shift 1 · Q66Given below are the oxides : Na2O, As2O3, N2O, NO\mathrm{Na_2O,\ As_2O_3,\ N_2O,\ NO} and Cl2O7\mathrm{Cl_2O_7} Number of amphoteric oxides is :MediumSingle correct
  10. 25 Jul 2022, Shift 2 · Q70The total number of acidic oxides from the following list is NO,N2O,B2O3,N2O5,CO,SO3,P4O10\mathrm{NO, N_2O, B_2O_3, N_2O_5, CO, SO_3, P_4O_{10}}MediumSingle correct
  11. 2 Sep 2020, Shift 2 · Q32Three elements X, Y and Z are in the 3rd3^{\mathrm{rd}} period of the periodic table. The oxides of X, Y and Z, respectively, are basic,…EasySingle correct
  12. 9 Jan 2020, Shift 1 · Q34The acidic, basic and amphoteric oxides, respectively, are :EasySingle correct

Shifts: 9 Jan 2020, Shift 1, 2 Sep 2020, Shift 2, 24 Jun 2022, Shift 1, 28 Jun 2022, Shift 2, 28 Jun 2022, Shift 1, 25 Jul 2022, Shift 2, 30 Jan 2024, Shift 2, 31 Jan 2024, Shift 1, 1 Feb 2024, Shift 1, 2 Apr 2026, Shift 2, 5 Apr 2026, Shift 2.

Same topic

Other ideas in Periodic Trends

Periodic Trends has 25 ideas JEE Main has asked; 17 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisAll repeated ideas