Given are two statements one is labelled as Assertion and other is labelled as Reason. Assertion : Magnesium can reduce Al 2 O 3 at a temperature below 1350 ° C , while above 1350 ° C aluminium can reduce MgO . Reason : 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

Step-by-step solution

Mg Al Melting point 924   K 933   K Boiling point 1363   K 2740   K it is true that magnesium (Mg) can reduce aluminium oxide Al 2 O 3 and aluminium can also reduce magnesium oxide. According to the Elingham diagram, we find that below 1350 o   C , Mg can reduce aluminium oxide and when the temperature is above 1350 o   C , Al can reduce magnesium oxide. So, Both Assertion and Reason are correct, but Reason is NOT the correct explanation of Assertion.