मराठी

Write Equations for the Reactions Taking Place at the Two Electrodes (Mentioning Clearly the Name of the Electrode) During the Electrolysis Of Molten Lead Bromide with Inert Electrodes - Chemistry

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प्रश्न

Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of Molten lead bromide with inert electrodes

उत्तर

The cathode and anode are both made of graphite plates.

Reaction at the cathode: `Pb^(2+) + 2e^(-) -> Pb`

Reaction at the anode: `Br^(-) - e^(-) -> Br`

                              `Br  + Br ->  Br_2`

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2015-2016 (March) Science Paper 2
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