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JEE Main 202522 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
22 January
Shift
Morning Shift
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2025 · 22 January · Morning Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which of the following electrolyte can be used to obtain H_2 ~S_2...

Which of the following electrolyte can be used to obtain H2 S2O8\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8 by the process of electrolysis?

Options

  1. ADilute solution of sodium sulphate.
  2. BAcidified dilute solution of sodium sulphate.
  3. CDilute solution of sulphuric acid
  4. DConcentrated solution of sulphuric acid

Correct answer

D. Concentrated solution of sulphuric acid

Step-by-step solution

Theory based. At anode : 2HSO4−→H2 S2O8+2e−2 \mathrm{HSO}_4^{-} \rightarrow \mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8+2 \mathrm{e}^{-}
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