Draw a well labelled diagram of a conductivity cell. Also write net cell reactions involved in electrolysis of aqueous NaCl. - Chemistry

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Answer in Brief

Draw a well labelled diagram of a conductivity cell. Also write net cell reactions involved in electrolysis of aqueous NaCl.

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Solution

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)
Concept: Electrolytic Cell
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Chapter 5: Electrochemistry - Short answer questions (Type- II)

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SCERT Maharashtra Question Bank 12th Standard HSC Chemistry Maharashtra State Board
Chapter 5 Electrochemistry
Short answer questions (Type- II) | Q 7

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