Question

Which of the following statements is/are correct regarding metallurgy?

• A. Both calcination and roasting are generally carried out in the same furnace, i.e., reverberatory furnace.
• B. The slag formed during the extraction of Copper metal from Chalcopyrites ore is $CaSi{O}_3$.
• C. Mond's process involved in the extraction of nickel is related with formation and decomposition of a square planner complex of nickel metal.
• D. In case of electrolytic refining of extracted metals, generally impure metal rod is made the anode and pure metal rod is made the cathode.

Answer 1

Answer: (A), (D)

The correct options are
A Both calcination and roasting are generally carried out in the same furnace, i.e., reverberatory furnace.
D In case of electrolytic refining of extracted metals, generally impure metal rod is made the anode and pure metal rod is made the cathode.

Both calcination and roasting are generally carried out in the this furnace, one in absence of air and other in presence of air.
The slag formed during the extraction of Copper metal from Chalcopyrites ore is $FeSi{O}_3$.
Mond's process involved in the extraction of Nickel is related with formation and decomposition of a tetrahedral complex of nickel metal $\left[Ni\right(CO{)}_4]$.

In case of electrolytic refining of extracted metals, generally impure metal rod is made the anode and pure metal rod is made the cathode. This is evident as at anode, we get impure slag and at cathode, we get pure metal.