Given are two statements one is labelled as Assertion A and other is labelled as Reason R. Assertion A :Magnesium can reduce A1 2 O 3 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 than those of aluminium. In light of the above statements, choose most appropriate answer from the options given below:
Text Solution
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From Ellingham diagram given in NCERT, it can * be seen that Mg, MgO line crosses Al, A1 2 O 3 line after 1350°C hence assertion is true.
Yes, Mg have lower MP and BP than aluminium but it does not explain the above fact.
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