The correct statement regarding the given Ell | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In an Ellingham diagram,a metal can reduce the oxide of another metal if the line for the formation of its own oxide lies below the line for the f

Vedclass · Accepted Answer

At $1400\,^\circ C,$ $Al$ can be used for the extraction of $Zn$ from $ZnO$.

Vedclass · Answer

(A) In an Ellingham diagram,a metal can reduce the oxide of another metal if the line for the formation of its own oxide lies below the line for the formation of the other metal's oxide.$1$. At $1400\,^\circ C,$ the line for the formation of $Al_2O_3$ is below the line for the formation of $ZnO.$ Therefore,$Al$ can reduce $ZnO$ to $Zn$.$2$. At $500\,^\circ C,$ the line for the formation of $ZnO$ is below the line for the formation of $CO,$ so coke cannot reduce $ZnO$.$3$. The line for the formation of $CO$ is below the line for the formation of $Cu_2O$ at all temperatures,so coke can reduce $Cu_2O$.$4$. At $800\,^\circ C,$ the line for the formation of $ZnO$ is below the line for the formation of $Cu_2O,$ so $Cu$ cannot reduce $ZnO$.Thus,option $A$ is correct.

The correct statement regarding the given Ellingham diagram is

Similar Questions

In the alumino-thermite process,$Al$ acts as which of the following substances?

How are the most electropositive metals extracted from their ores?

In the equation,the metal $M$ is:
$4M + 8CN^- + 2H_2O + O_2 \xrightarrow{} 4[M(CN)_2]^- + 4OH^-$

Which one of the following electrolytes is used in Down's process for the extraction of sodium metal?

In metallurgy,flux is a substance used to convert

Vedclass Test Series

Exam Paper Generator

Online Exam Module