Class 12

Chemistry

Metallurgy

General Principles and Processes of Isolation of Elements

The oxide of a metal (R) can be reduced by the metal (P) and metal (R) can reduce the oxide of metal (Q). Then the decreasing order of the reactivity of metal (P), (Q) and (R) with oxygen is :

- P > Q > R
- P > R > Q
- R > P > Q
- Q > P > R

P can reduce oxide of R so P is more reactive than R.

So, reactivity order is P > R > Q.

So, reactivity order is P > R > Q.