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JEE Main 20208 JanuaryMorning Shift
Exam
JEE Main
Year
2020
Date
8 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Redox Reactions

JEE Main 2020 · 8 January · Morning Shift · Chemistry · Redox Reactions

The strength of an aqueous NaOH solution is most accurately...

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

Options

  1. AAq.NaOHAq . NaOH in a pipette and aqueous oxalic acid in a burette
  2. BAq.NaOHAq . NaOH in a burette and aqueous oxalic acid in a conical flask
  3. CAq.NaOHAq . NaOH in a burette and concentrate H2SO4{H}_{2}S{O}_{4} in a conical flask
  4. DAq.NaOHAq . NaOH in a volumetric flask and concentrated H2SO4{H}_{2}S{O}_{4} in a conical flask

Correct answer

B. Aq.NaOHAq . NaOH in a burette and aqueous oxalic acid in a conical flask

Step-by-step solution

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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