In Castner `-` Kellner cell for the manufacture of `NaOH(` caustic soda `), Hg` acts as cathode as well as anode.

In Castner `-` Kellner cell for the manufacture of `NaOH(` caustic sod

1.	In Castner `-` Kellner cell for the manufacture of `NaOH(` caustic soda `), Hg` acts as cathode as well as anode.
Answer» Correct Answer - T This cell is also called mercurry cathode cell. In this cell, `Hg` flows along the bottom of the cell and acts as cathode in the left hand compartment fitted with graphite anodes in brine `(NaCl)` solution, whereas the right hand compartment is fitted with `Fe` cathodes dippped in very dilute `NaOH` solution and `Hg` acts as anode in this compartment. Thus `Hg` acts as an intermediate electrode by induction, cathode on `LHS` and anode in `RHS.`

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In Castner `-` Kellner cell for the manufacture of `NaOH(` caustic soda `), Hg` acts as cathode as well as anode.

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