Question

In order to refine blister copper, it is melted in a furnace and is stirred with green logs of wood. The purpose is

Solution

Correct option is

To reduce the metallic oxide impurities with hydrocarbon gases liberated from the wood

 

         

                          (from green

                          logs of wood)

SIMILAR QUESTIONS

Q1

Purpose of smelting of an ore is

Q2

Matte contains mainly

Q3

Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out

Q4

In metallurgy, flux is a substance used to convert

Q5

In blast furnace, the highest temperature in

Q6

Which metal is used as a reducing agent in smelting?

Q7

The electrolytic method of reduction is employed for the preparation of metals that

Q8

In alumino-thermite process, aluminium is used as

Q9

In the metallurgical extraction of zinc from ZnO, the reducing agent used is

Q10

The slag obtained during the extraction of copper from copper pyrites is composed of