Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryElectrochemistry2 Marks
Question
Write the electrode reactions during electrolysis of molten $KCl.$
✓
Answer
$KCl _{(\text {molten })} \rightarrow K _{( l )}^{+}+ Cl _{( ij }^{+}$
Reaction at cathode :
$2 K _{( l )}^{+}+2 e ^{-} \rightarrow 2 K _{( s )} \text { Reduction }$
Reaction at anode :
$ 2 Cl _{( l )}^{-} \rightarrow 2 Cl _{( g )}+2 e ^{-}$
$2 Cl _{ g )} \rightarrow Cl _{2( g )} $
Overall reaction : $2 K _{( l )}^{+}+2 Cl _{( l )}^{-} \rightarrow 2 K _{( s )}+ Cl _{2( g )}$
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