Question
Chemistry Question on Electrochemical Cells
The incorrect statement about Hall-Heroult process is :
A
Carbon anode is oxidised to CO and CO2
B
Na3AlF6 helps to decrease the melting point of the electrolyte
C
CaF2 helps to increase the conductivity of the electrolyte
D
Oxidation state of oxygen changes in the overall cell reaction
Answer
Oxidation state of oxygen changes in the overall cell reaction
Explanation
Solution
The correct answer is Option (D):Oxidation state of oxygen changes in the overall cell reaction