Which reduction reaction cannot be... | Metallurgy JEE Main 2021

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JEE MAIN 2021

16-03-2021 S2

Question

Which of the following reduction reaction CANNOT be carried out with coke ?

Select the correct option:

$\mathrm{Al}_2 \mathrm{O}_3 \rightarrow \mathrm{Al}$

$\mathrm{ZnO} \rightarrow \mathrm{Zn}$

$\mathrm{Fe}_2 \mathrm{O}_3 \rightarrow \mathrm{Fe}$

$\mathrm{Cu}_2 \mathrm{O} \rightarrow \mathrm{Cu}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Reduction of $\mathrm{Al}_2 \mathrm{O}_3 \rightarrow \mathrm{Al}$ is carried out by electrolytic reduction of its fused salts. $\mathrm{ZnO}, \mathrm{Fe}_2 \mathrm{O}_3 \& \mathrm{Cu}_2 \mathrm{O}$ can be reduce by carbon.

Question Tags

JEE Main

Chemistry

Medium

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