Describe the Preparation of Sodium hydroxide by carliner-kelin- ter Cell. .
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In castner-kellner method NaOH is prepared by the electrolysis of aqueous solution of NaCl(Brine). i.e. 25 gm of NaCl is dissolved in 75 gm of water. ... When electric current is passed through brine, +ve and -ve ions migrate towards their respective electrodes. Na+ions are discharged at mercury cathode.
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