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 - <p>Both <strong>A </strong>and <strong>R </strong>are correct, and <strong>R </strong>is correct explanation of A.</p>
Option 2 - <p>Both <strong>A </strong>and <strong>R </strong>are correct, but <strong>R</strong> is NOT correct explanation of<strong> A.</strong></p>
Option 3 - <p><strong>A </strong>is correct <strong>R </strong>is not correct.</p>
Option 4 - <p><strong>A </strong>is not correct, <strong>R </strong>is correct.</p>
1 Views|Posted 4 months ago
Asked by Shiksha User
1 Answer
R
4 months ago
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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Chemistry Ncert Solutions Class 12th 2023

Chemistry Ncert Solutions Class 12th 2023

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