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Which is not correct statements?...

Which is not correct statements?

A

Cassiterite, chromite and haematite are concentrated by hardraulic wshing (Tabling).

B

Pure `Al_(2)O_(3)` is obtained from the baruxite ore by leaching in the Bayer's proces.

C

Sulphide ore is concentrated by calcination method.

D

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

Text Solution

Verified by Experts

The correct Answer is:
C
Sulphide ore is concentrated by roasting.
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