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Which is not correct statement ?...

Which is not correct statement ?

A

Casseterite, chromite and haematitie are concentrated by hydraulic washing (Tabling).

B

Pure `Al_(2)O_(3)` is obtained from the bauxite ore by leaching in the Bayer's process

C

Sulphide ore is concentrated by calcination method

D

Roasting can convert sulphide into oxide or dulphate and part of sulphide may also act as a reducing agent

Text Solution

Verified by Experts

The correct Answer is:
C
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