Question

In polling, wood gas is responsible for the removal of volatile impurities.

• A. True
• B. False

Answer 1

The correct option is A True

True. Polling is used for converting Copper Oxide $\left(C{u}_{2}O\right)$ to Copper $\left(Cu\right)$. When ore is heated with wood poles, the poles release charcoal, shoot and gas. The gas released reduces $CuO$ to $Cu$. So the gas takes away impurities.