Medium
The incorrect statement about the Hall$-$Heroult process is:
- ACarbon anode is oxidised to $CO$ and $CO_2$.
- B$Na_3AlF_6$ helps to decrease the melting point of the electrolyte.
- C$CaF_2$ helps to increase the conductivity of the electrolyte.
- DOxidation state of oxygen changes in the overall cell reaction.
Explore More
Similar Questions
The cyanide complex of silver formed in the silver extraction in Mac-Arthur's Forrest cyanide process is
The main reactions occurring in a blast furnace during the extraction of iron from haematite are $....$.
$(i)$ $Fe_2O_3 + 3CO \to 2Fe + 3CO_2$
$(ii)$ $FeO + SiO_2 \to FeSiO_3$
$(iii)$ $Fe_2O_3 + 3C \to 2Fe + 3CO$
$(iv)$ $CaO + SiO_2 \to CaSiO_3$
$(i)$ $Fe_2O_3 + 3CO \to 2Fe + 3CO_2$
$(ii)$ $FeO + SiO_2 \to FeSiO_3$
$(iii)$ $Fe_2O_3 + 3C \to 2Fe + 3CO$
$(iv)$ $CaO + SiO_2 \to CaSiO_3$
MediumAIIMS 2016
View SolutionWhat does the slag obtained during the extraction of iron primarily consist of?
Medium
View Solution$A$ layer of coke is spread over bauxite during the electrolytic reduction of alumina by the Hall-Heroult process. This layer acts as a/an:
Medium
View SolutionThe cyanide process is used for the extraction of which of the following?
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo