Chemistry · 2022
JEE Main · 28 June 2022, Shift 1 · Q64
Given are two statements one is labelled as Assertion A and other is labelled as Reason R. Assertion A:Magnesium can reduce Al_2 O_3 at a temperature…
Given are two statements one is labelled as Assertion A and other is labelled as Reason R.
Assertion A :Magnesium can reduce $\displaystyle \mathrm{Al}_2 \mathrm{O}_3$ at a temperature below $\displaystyle 1350^{\circ} \mathrm{C}$, while above $\displaystyle 1350$°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 :
Official answer
(2)
Both $\displaystyle \mathbf{A}$ and $\displaystyle \mathbf{R}$ are correct, but $\displaystyle \mathbf{R}$ is NOT the correct explanation of $\displaystyle \mathbf{A}$.
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.