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प्रश्न
Draw a well labelled diagram of a conductivity cell. Also write net cell reactions involved in electrolysis of aqueous NaCl.
आकृति
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उत्तर
Conductivity cell
Net cell reaction in electrolysis of aqueous NaCl:
The net cell reaction is the sum of two electrode reactions.
| \[\ce{2Cl^-_{ (aq)} -> Cl_{2(g)} + 2e^-}\] | (Oxidation half reaction at anode) |
| \[\ce{2H2O_{(l)} + 2e^- -> H_{2(g)} + 2OH^-_{ (aq)}}\] | (Reduction half reaction at cathode) |
|
\[\ce{2Cl^-_{ (aq)} + 2H2O_{(l)} -> Cl_{2(g)} + H_{2(g)} + 2OH^-_{ (aq)}}\] |
(Overall cell reaction) |
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