36. Which of the following ore is concentrated by Froth floatation process ?
(a) ZnCO3
(b) ZnO
(c) ZnS
(d) Na2S
36. Which of the following ore is concentrated by Froth floatation process ?
(a) ZnCO3
(b) ZnO
(c) ZnS
(d) Na2S
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Last Activity: 3 Years ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago