Describe the role of the following: (i) ...

CBSE Class 12 Chemistry 2014 Outside Delhi Set 2 Solved Paper

Question : 8 of 13

Marks: +1, -0

Describe the role of the following:

(i)

\mathrm{SiO}_2

in the extraction of copper from copper matte.

(ii)

\mathrm{NaCN}

in froth floatation process.

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