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Statement 1: For extraction of copper, m...

Statement 1: For extraction of copper, malachite is calcunited but chalcocite is roasted
Statement 2: Both roasting and calisation conert all the ares into their oxides

A

Both I and II are correct and II is correct explanation of I

B

Both in and II are correct and li is not correct explanation of l

C

is true but ll is false

D

is false but II is true

Text Solution

Verified by Experts

The correct Answer is:
C
Statement-I: Malachite `(CuCO_(3).Cu(OH)_(2))` has volatile impurity. So it is calcinated. Where as chalcocite (sulphide ore of copper) is roasted.
Statement. Il : During roasting only sulphide ores are converted into oxides.
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