Metallurgical Engineering > GATE 2024 > Extractive Metallurgy
Which of the following statements is/are correct?
A
Ultimate analysis of coal involves determination of moisture, volatile matter, fixed carbon and ash.
B
Reduction of wustite in blast furnace occurs at the lower part of the stack.
C
Roasting involves reduction of sulfide ores to pure metals.
D
White metal (impure Cu2S) is produced by oxidizing Fe and S during smelting of Cu-Fe matte.

Correct : a,d

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