MetallurgyHardBloom L3

Question

Silica is added to roasted copper ores during extraction in order to remove

Options

A.cuprous sulphide
B.ferrous oxide
C.ferrous sulphide
D.cuprous oxide

Solution

Sol. In extraction of copper SiO2 is added to remove Fe2O3 by forming slag. FeSiO3.

Create a free account to view solution

View Solution Free
Topic: Metallurgy·Practice all Metallurgy questions

More Metallurgy Questions

Liquation process may be applied for the purification of :...Carbon and CO gas are used to reduce which of the following pairs of metal oxides forexpiration of metals ?...In the purification of aluminium by Hoope′s process, impurities of silicon and copper are added to molten aluminiu...Amphoteric nature of aluminium is employed in which of the following process for extraction of aluminium?...Flux is used to remove :...