Sarthaks Test
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Which of the following statements are correct?

(i) A depressant prevents certain type of particle to come to the froth.

(ii) Copper matte contains Cu2S and ZnS.

(iii) The solidified copper obtained from reverberatory furnace has blistered appearance due to evolution of SO2 during the extraction.

(iv) Zinc can be extracted by self-reduction.

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(i), (iii)

(i) A depressant prevents certain type of particle to come to the froth.

(iii) The solidified copper obtained from reverberatory furnace has blistered appearance due to evolution of SOduring the extraction.

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