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Which of the following statements are co...

Which of the following statements are correct ?

A

A depressant prevents certain type of particles to come to the froth.

B

Copper matte contains `Cu_(2)S` and ZnS.

C

The solidified copper obtained from reverberatory furnance has blistered appearance due to evolution of `SO_(2)` during the extraction.

D

Zinc can be extracted by self-reduction.

Text Solution

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The correct Answer is:
A, C
are correct statements .
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