JEE Main 2022 · ChemistryNumerical answerNumerical valueEasyRecall

JEE Main 24 June 2022, Shift 1, Chemistry Q86

Question 86 of 90 in this shift, Chemistry question 26 of 30, Section B.

The difference in oxidation state of chromium in chromate and dichromate salts is ______.

Official answer

NTA final key (2022 Session 1).

Chapter: Redox Reactions
Topic: Redox Reactions
Idea tested: Oxidation Number Assignment

Same idea in other shifts

Asked 9× in all

9 Apr 2024, Shift 1 · Q65Given below are two statements : Statement (I) : The oxidation state of an element in a particular compound is the charge acquired by its…MediumTwo statements
27 Jan 2024, Shift 1 · Q85From the given list, the number of compounds with +4 oxidation state of Sulphur is __________.…EasyNumerical value
6 Apr 2023, Shift 1 · Q90In ammonium – phosphomolybdate, the oxidation state of Mo is + ________MediumNumerical value
15 Apr 2023, Shift 1 · Q90In Chromyl chloride, the oxidation state of chromium is (+) __________.EasyNumerical value
27 Jul 2022, Shift 1 · Q88In the titration of $\mathrm{KMnO_4}$ and oxalic acid in acidic medium, the change in oxidation number of carbon at the end point is _____EasyNumerical value
27 Aug 2021, Shift 1 · Q39In polythionic acid, $\mathrm{H_2S_xO_6}$ ( $x$ = 3 to 5) the oxidation state(s) of sulphur is/are :MediumSingle correct
25 Jul 2021, Shift 2 · Q32Identify the process in which change in the oxidation state is five :EasySingle correct
18 Mar 2021, Shift 2 · Q38The oxidation states of nitrogen in NO, $\mathrm{NO_2}$ , $\mathrm{N_2O}$ and $\mathrm{NO_3^-}$ are in the order of :EasySingle 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.