JEE Main 2020ChemistryRedox ReactionsEasyMCQ

JEE Main 2020 — Redox Reactions Question with Solution

JEE Main 2020 (08 Jan Shift 1)

Question

The strength of an aqueous NaOH solution is most accurately determined by titrating: (Note: consider that an appropriate indicator is used)

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Show full solutionCorrect option: B
Correct answer
BAq.NaOH in a burette and aqueous oxalic acid in a conical flask

Step-by-step explanation

Oxalic acid is a primary standard solution while H2SO4 is a secondary standard solution.

Titration is a common laboratory method of quantitative chemical analysis to determine the concentration of an identified analyte. A reagent, termed the titrant or titrator, is prepared as a standard solution of known concentration and volume.

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About this question

This is a previous-year question from JEE Main 2020, covering the Redox Reactions chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.