Is it true that under certain conditions $M g$ can reduce $A l_{2} O_{3}$ and $A l$ can reduce $M g O$ ? What are those conditions?

Open in App

Solution

Yes from Ellingham diagram, it is found that the plots of $A l$ and $M g$ cross each other at $1350^{\circ} C .$ Thus, below $1350^{\circ} C$ can $M g$ reduce $A l_{2} O_{3}$ and above $1350^{\circ} C A l$ can reduce $M g O .$

Suggest Corrections

Similar questions

Is it true that under certain conditions, Mg can reduce SiO₂ and Si can reduce MgO? What are those conditions?

You are given an Ellingham diagram (deliberately not shown). It is given that for almost all practically achievable temperatures, the $F e \to F e_{2} O_{3}$ line lies above the $A l \to A l_{2} O_{3}$ line and $Δ_{f} G^{\circ}$ for both $A l_{2} O_{3}$ and $F e_{2} O_{3}$ are negative. Which of the following statements is/are true?

Q. Predict conditions under which

A l

might be expected to reduce

M g O

Predict condition under which Al might be expected to reduce MgO.

Q. Carbon cannot be used to reduce

A l_{2} O_{3}

to Al while

Z n O

can be reduced by carbon.

If it is true enter 1, else enter 0.

Join BYJU'S Learning Program

Is it true that under certain conditions Mg can reduce Al2O3 and Al can reduce MgO ? What are those conditions?

Yes from Ellingham diagram, it is found that the plots of Al and Mg cross each other at 1350∘C. Thus, below 1350∘C can Mg reduce Al2O3 and above 1350∘CAl can reduce MgO.

Is it true that under certain conditions $M g$ can reduce $A l_{2} O_{3}$ and $A l$ can reduce $M g O$ ? What are those conditions?

Yes from Ellingham diagram, it is found that the plots of $A l$ and $M g$ cross each other at $1350^{\circ} C .$ Thus, below $1350^{\circ} C$ can $M g$ reduce $A l_{2} O_{3}$ and above $1350^{\circ} C A l$ can reduce $M g O .$