JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 29 July 2022, Shift 1, Chemistry Q67

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

Lithium nitrate and sodium nitrate, when heated separately, respectively, give :

(1) $\mathrm{LiNO_2}$ and $\mathrm{NaNO_2}$
(2) $\mathrm{Li_2O}$ and $\mathrm{Na_2O}$
(3) $\mathrm{Li_2O}$ and $\mathrm{NaNO_2}$ Official answer
(4) $\mathrm{LiNO_2}$ and $\mathrm{Na_2O}$

Official answer

Option 3

NTA final key.

Chapter: The s-Block Elements
Topic: s-Block Elements
Idea tested: Thermal Stability Trends

Same idea in other shifts

Asked 3× in all

3 Aug 2021, Shift 2 · Q36A white solid (X) on heating forms a solid (Y) and a gas (Z). Another solid (B) forms (X) by reacting with (Z). (Y) can be converted into…MediumSingle correct
26 Aug 2021, Shift 2 · Q37Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Barium…MediumAssertion–reason

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.