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Subjects
Science State Board
Class 10
Periodic Classifications of elements
Metallurgy of Aluminium, Copper and Iron
9.
Fill the blanks: Copper extraction
Exercise condition:
6
m.
Fill in the blanks:
1
.
The __________ is combined with powdered coke, sand and heated in a blast furnace to produce matte and slag.
2
.
Sulphuric acid is used to acidify __________ solution.
3.
__________ method is used to get high purity metal.
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