A) to remove dissolved gases in blister copper
B) by taking the impurities on the surface to oxidise them
C) to increase the quantity of carbon in copper
D) the impurities of metal oxide are reduced by hydrocarbon gases evolved from wood
Correct Answer: D
Solution :
For the purification of blister copper, the copper is melted in the furnance and stirring with green logs of wood. During this process, the impurities of metal oxide are reduced by hydrocarbon gases evolved from wood.
You need to login to perform this action.
You will be redirected in
3 sec
