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Charge or faradays needed to convert given moles of an ion or compound

This type of question, asked 7 times: 2 May 2023 S2, 3 May 2023 S1, 4 May 2023 S1, 19 Apr 2025 S2, 25 Apr 2025 S2, 11 Apr 2026 S2, 14 May 2026 S2. All 7 questions below, oldest first.

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  1. Question 1

    2 May 2023 S2

    97
    Calculate the quantity of electricity required to liberate 0.1 mole of chlorine gas during electrolysis of molten sodium chloride.

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  2. Question 2

    3 May 2023 S1

    79
    Calculate the amount of electricity required to convert 1.1 mol of Cr2O72−\text{Cr}_2\text{O}_7^{2-} to Cr3+\text{Cr}^{3+} in acidic medium.

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  3. Question 3

    4 May 2023 S1

    99
    Calculate the amount of electricity required in coulombs to convert 0.08 mol of MnO4−\text{MnO}_4^- to Mn2+\text{Mn}^{2+}.

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  4. Question 4

    19 Apr 2025 S2

    67
    What is the number of faraday required to form 1 molH21\text{ }molH_{2} by reduction of H+H^{+}ions?

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  5. Question 5

    25 Apr 2025 S2

    53
    What is the charge required to convert 2 molKMnO42\text{ }molKMnO_{4} to MnSO4MnSO_{4} ?

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  6. Question 6

    11 Apr 2026 S2

    26
    Match List I with List II.
    List I (Conversion)List II (Number of Faraday required)
    A. 11 mole of H2O\mathrm{H_2O} to O2\mathrm{O_2}I. 3F3F
    B. 11 mol of MnO4−\mathrm{MnO_4^-} to Mn2+\mathrm{Mn^{2+}}II. 2F2F
    C. 1.51.5 mol of Ca from molten CaCl2\mathrm{CaCl_2}III. 1F1F
    D. 11 mol of FeO to Fe2O3\mathrm{Fe_2O_3}IV. 5F5F
    Choose the correct answer from the options given below :

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  7. Question 7

    14 May 2026 S2

    26
    What is the number of moles of electrons that are required for the reduction of 22 moles of Al+3\mathrm{Al^{+3}} to Al?

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