Electrochemistry

CBSE Class 12 · Chemistry · 28 past questions

17 of 28 · show all

1. Q3 2026

   What will happen during the electrolysis of aqueous solution of CuCl$_2$ by using platinum electrodes ?

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2. Q6 2025

   In an electrochemical cell, the following reaction takes place…

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3. Q7 2025

   What amount of electric charge is required for the reduction of 1 mole of $\mathrm{MnO_4^-}$ into…

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4. Q9 2025

   The charge required for the reduction of 1 mol of $\mathrm{MnO_4^-}$ to $\mathrm{MnO_2}$ is

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5. Q10 2025

   For question number 13 to 16, two statements are given – one labelled as Assertion (A) and the other labelled…

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6. Q11 2025

   The electrical resistance of a column of 0.05 M NaOH solution of area 0.8 cm$^2$ and length 40 cm is…

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7. Q13 2025

   Standard electrode potential for $Sn^{4+}/Sn^{2+}$ couple is +0.15 V and that for the $Cr^{3+}/Cr$ couple is…

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8. Q14 2024

   During electrolysis of aqueous solution of NaCl…

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9. Q16 2024

   During the electrolysis of aqueous NaCl, the cathodic reaction is…

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10. Q18 2024

    Calculate the potential of Iron electrode in which the concentration of Fe$^{2+}$ ion is 0·01 M.…

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11. Q19 2023

    Which of the following solutions of KCl will have the highest value of molar conductivity ?

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12. Q20 2023

    **Assertion (A) :** Conductivity decreases with decrease in concentration of electrolyte.…

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13. Q22 2023

    Kohlrausch gave the following relation for strong electrolyte…

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14. Q24 2023

    The correct cell to represent the following reaction is…

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15. Q25 2023

    $\Delta G$ and $E^\circ_{cell}$ for a spontaneous reaction will be…

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16. Q27 2022

    Write the Nernst equation for the following cell reaction…

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17. Q28 2022

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