Correct statement is
Van-Aekel method is used for extraction of Zr
van-Arkel method is used to purify metals such as Zr, Ti, V, Th, etc, limestone is basic flux. Dolomite (CaCO3) is an ore of Ca. Willemite (Zn2SiO4) is a silicate ore.
In order to refine blister copper, it is melted in a furnace and is stirred with green logs of wood. The purpose is
The slag obtained during the extraction of copper from copper pyrites is composed of
Purest form of iron is
The cyanide process is used for obtaining
Of the following, which cannot be obtained by electrolysis of the aqueous solution of their salts?
Mond’s process is used for the purification of
Which of the following ore is not concentrated by froth floatation process?
Thermite is a mixture of
Which statement is incorrect?
Which of the following metals cannot be extracted by carbon reduction process?