Which of the following statements is incorrec | vedclass

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(C) In the Hall-Heroult process,$Al_2O_3$ is dissolved in molten cryolite $(Na_3AlF_6)$ to lower its melting point and increase electrical conductivit

Vedclass · Accepted Answer

$Li_2CO_3$ can be used in place of cryolite $(Na_3AlF_6)$.

Vedclass · Answer

(C) In the Hall-Heroult process,$Al_2O_3$ is dissolved in molten cryolite $(Na_3AlF_6)$ to lower its melting point and increase electrical conductivity. $Al$ is deposited at the cathode,and $CO_2$ is released at the carbon anode. $CaF_2$ (fluorspar) is added to lower the melting point further and improve fluidity. $Li_2CO_3$ cannot be used as a substitute for cryolite because it does not provide the necessary electrolyte properties for the process. Therefore,option $C$ is the incorrect statement.

Which of the following statements is incorrect regarding the electrolysis of $Al_2O_3$ by the Hall-Heroult process?

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