KcetMetallurgyKCET 2024MCQ+1 / -02024The incorrect statement about Hall -Heroult process isA carbon anode is oxidised to CO and $\mathrm{CO}_2$.B $\mathrm{Na}_3 \mathrm{AlF}_6$ helps to decrease the melting point of the electrolyte.C $\mathrm{CaF}_2$ helps to increase the conductivity of the electrolyte.Doxidation state of oxygen changes in the overall cell reaction.Check AnswerClear SelectionReveal AnswerShow Explanation
