JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 28 June 2022, Shift 2, Chemistry Q90

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

0.01 M

\mathrm{KMnO_4}

solution was added to 20.0 mL of 0.05 M Mohr’s salt solution through a burette. The initial reading of 50 mL burette is zero. The volume of

\mathrm{KMnO_4}

solution left in the burette after the end point is __________ mL. (nearest integer)

Official answer

NTA final key.

Chapter: Redox Reactions
Topic: Redox Reactions
Idea tested: Mohr's Salt Redox Titrations

Same idea in other shifts

Asked 3× in all

27 Aug 2021, Shift 1 · Q55When 10 mL of an aqueous solution of $\mathrm{KMnO_4}$ was titrated in acidic medium, equal volume of 0.1 M of an aqueous solution of…MediumNumerical value
25 Jul 2021, Shift 1 · Q51When 10 mL of an aqueous solution of $\mathrm{Fe^{2+}}$ ions was titrated in the presence of dil $\mathrm{H_2SO_4}$ using diphenylamine…MediumNumerical value

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.