Question:
The incorrect statement about Hall-Heroult process is :
The incorrect statement about Hall-Heroult process is :
Updated On: May 1, 2024
- Carbon anode is oxidised to CO and CO2
- Na3AlF6 helps to decrease the melting point of the electrolyte
- CaF2 helps to increase the conductivity of the electrolyte
- Oxidation state of oxygen changes in the overall cell reaction
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
The correct answer is Option (D):Oxidation state of oxygen changes in the overall cell reaction
Was this answer helpful?
1
0
Top KCET Chemistry Questions
- Which of the following is not true for oxidation?
- When $50\, cm ^{3}$ of $0.2\, N$ $H_{2} SO _{4}$ is mixed with $50 cm ^{3}$ of $1 N\, KOH$, the heat liberated is :
- Which of the following is NOT a pair of functional isomers?
- The vapour pressure of due to
- A nitrogen containing organic compound gave an oily liquid on heating with bromine and potassium hydroxide solution. On shaking the product with acetic anhydride, an antipyretic drug was obtained. The reactions indicate that the starting compound is :
View More Questions
Top KCET Electrochemical Cells Questions
- A device, in which electrical energy is converted into chemical energy, is called:
- Aluminium displaces hydrogen from dilute HCl whereas silver does not. The E.M.F. of a cell prepared by combining $Al /Al^{+3}$ and $Ag/Ag^{+}$ is $2.46\, V.$ The reduction potential of silver electrode is $+ 0.80\, V$. The reduction potential of aluminium electrode is :
- Consider the following 4 electrodes
A : Ag+ (0.0001 M)/Ag(s) ; B : Ag+ (0.1 M) / Ag(s)
C : Ag+ (0.01 M)/Ag(s) ; D : Ag+ (0.001 M) / Ag(s); \(E^{\degree}_{Ag^{+/Ag}}\)=+ 0.80 V
Then reduction potential in volts of the electrodes in the order - For a given half cell, \( \text{Al}^{3+} + 3e^- \rightarrow \text{Al} \) on increasing the concentration of aluminium ion, the electrode potential will
- Match the following and select the correct option for the quantity of electricity, in Cmol\(^{-1}\), required to deposit various metals at the cathode.
View More Questions
Top KCET Questions
- Which of the following is not true for oxidation?
- If $a, b$ and $c \in N$ which one of the following is not true ?
- When $50\, cm ^{3}$ of $0.2\, N$ $H_{2} SO _{4}$ is mixed with $50 cm ^{3}$ of $1 N\, KOH$, the heat liberated is :
- If $a | (b + c)$ and $a| (b-c)$ where $a,b,c \in \, N $ then
- Which of the following is NOT a pair of functional isomers?
View More Questions