Question
A sulphide ore is converted into metal oxide by which of
the following process?Solution
Roasting is a process of heating of sulphide ore to a high temperature in presence of air. It is a step of the processing of certain ores. More specifically, roasting is a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal components.
More General science Common Questions
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
64, 32, ? , 48, 96, 240
10, 20, 60, 300, ?, 23100
3, 5, 12, 38, 154, ?
120, 120, ?, 360, 900, 2700
12    17    44    147    ?   3065   18420
...827, 820, 806, 785, 757, ?
58     69      56       ?      54       73
...12, 19, 33, ?, 117
251, 130, 274, ?, 301, 76Â
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