MCQ
For two statements are given$-$one labelled Assertion $(A)$ and the other labelled Reason $(R).$ Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below:
Assertion: Following reaction describes the rusting of iron and is a redox reaction.
$\ce{4Fe + 3O_2 \rightarrow 4Fe^{3+} + 60^{2-}.}$
Reason: The metallic iron is oxidised to $Fe^{3+}.$
Assertion: Following reaction describes the rusting of iron and is a redox reaction.
$\ce{4Fe + 3O_2 \rightarrow 4Fe^{3+} + 60^{2-}.}$
Reason: The metallic iron is oxidised to $Fe^{3+}.$
- ✓Both $A$ and $R$ are true, and $R$ is correct explanation of the assertion.
- BBoth $A$ and $R$ are true, but $R$ is not the correct explanation of the assertion.
- C$A$ is true, but $R$ is false.
- D$A$ is false, but $R$ is true.