Assertion : Reduction of the metal oxide usually involves heating it with some other substance acting as a reducing agent.
Reason : The reducing agent combines with the oxygen of the metal oxide.

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of(A).
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Answer

A

Explanation

Reduction of the metal oxide usually involves heating it with some other substance acting as reducing agent (C or CO or even another metal). The reducing agent (e.g. carbon) combines with the oxygen of the metal oxide.
`M_x O_y + yC to x M + y CO`