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Extraction of metal from the ore cassite...

Extraction of metal from the ore cassiterite involves
(i) carbon reduction of an oxide are
(ii) self reduction of a sulphide or
(iii) removal of copper impurity
(iv) removal of iron impurity

A

1,3,4

B

2,3,4

C

2,3

D

3,4

Text Solution

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The correct Answer is:
B
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