InterviewSolution
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InterviewSolution
| 1. |
The Matte obtained by smelting copper pyrites with coke and sand contains mainly : (a) FeS + ZnS (b) Cu2S + FeS (c) CuS + FeS2 (d) ZnS + CuS |
| Answer» <p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Correct option (b) Cu<sub>2</sub>S + FeS</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Explanation:</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">Copper pyrites on smelting with coke and sand mainly contain a black mixture of Cu<sub>2</sub>S and a little FeS. (which escapes from oxidation) is obtained. This black mixture is known as ‘‘Matte’’.</span></span></p> | |