Given are two statements one is labeled as Assertion A and other is labeled as Reason R.
Assertion A : Magnesium can reduce Al2O3 at a temperature below 1350°C, while above 1350°C aluminium can reduce MgO
Reason R : The melting and boiling points of magnesium are lower thatn those of aluminium.
In light of the above statements, choose most appropriate answer for the options given below:
Given are two statements one is labeled as Assertion A and other is labeled as Reason R.
Assertion A : Magnesium can reduce Al2O3 at a temperature below 1350°C, while above 1350°C aluminium can reduce MgO
Reason R : The melting and boiling points of magnesium are lower thatn those of aluminium.
In light of the above statements, choose most appropriate answer for the options given below:
Option 1 -
Both A and R are correct, and R is correct explanation of A.
Option 2 -
Both A and R are correct, but R is NOT correct explanation of A.
Option 3 -
A is correct R is not correct.
Option 4 -
A is not correct, R is correct.
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1 Answer
-
Correct Option - 4
Detailed Solution:Below 1350° C, Mg can reduce Al2O3 and above 1350°C, Al can reduce MgO (from Ellingham diagram).
Melting and boiling point of Mg are lower than that of Al.
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Ellingham diagram explains the feasibility of reduction process not the kinetics of process.
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