JEE Main 2022 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 25 July 2022, Shift 2, Chemistry Q70

Question 70 of 90 in this shift, Chemistry question 10 of 30, Section A.

The total number of acidic oxides from the following list is

\mathrm{NO, N_2O, B_2O_3, N_2O_5, CO, SO_3, P_4O_{10}}

(1)3
(2)4Official answer
(3)5
(4)6

Official answer

Option 2

NTA final key.

Chapter: The p-Block Elements
Topic: Periodic Trends
Idea tested: Acidic and Basic Character of Oxides

Same idea in other shifts

Asked 12× in all

2 Apr 2026, Shift 2 · Q58The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is:MediumSingle correct
5 Apr 2026, Shift 2 · Q58Given below are two statements : Statement I : The number of pairs among $\mathrm{[Al_2O_3, Cr_2O_3]}$ , $\mathrm{[Cl_2O_7, Mn_2O_7]}$ ,…MediumTwo statements
1 Feb 2024, Shift 1 · Q87Among the following oxides of p-block elements, number of oxides having amphoteric nature is ________. $\mathrm{Cl_2O_7}$ , CO,…MediumNumerical value
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
31 Jan 2024, Shift 1 · Q67Consider the oxides of group 14 elements $\mathrm{SiO_2}$ , $\mathrm{GeO_2}$ , $\mathrm{SnO_2}$ , $\mathrm{PbO_2}$ , CO and GeO. The…MediumSingle correct
24 Jun 2022, Shift 1 · Q66Given below are the oxides : $\mathrm{Na_2O,\ As_2O_3,\ N_2O,\ NO}$ and $\mathrm{Cl_2O_7}$ Number of amphoteric oxides is :MediumSingle correct
28 Jun 2022, Shift 1 · Q67Given below are two statements : Statement I :The pentavalent oxide of group-15 element, $\mathrm{E_2O_5}$ , is less acidic than trivalent…MediumTwo statements
28 Jun 2022, Shift 2 · Q66Match List - I with List - II : List - I (Oxide) | List - II (Nature) (A) $\mathrm{Cl_2O_7}$ | (I) Amphoteric (B) $\mathrm{Na_2O}$ | (II)…EasyMatch the list

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.