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प्रश्न
When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains ______.
पर्याय
sulphides of copper (II) and iron (II)
sulphides of copper (II) and iron (III)
sulphides of copper (I) and iron (II)
sulphides of copper (I) and iron (III)
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उत्तर
When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains sulphides of copper (I) and iron (II).
Explanation:
The ore is heated in a reverberatory furnace after mixing with silica. In the furnace, iron oxide 'slags of' as iron silicate and copper is produced in the form of copper mattie this contains \[\ce{Cu2S}\] and \[\ce{FeS}\].
\[\ce{FeO + SiO2 -> FeSiO3 (slag)}\]
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| List - I | List - II | ||
| a. | Siderite | I. | FeCO3 |
| b. | Malachite | II. | CuCO3 · Cu(OH)2 |
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| d. | Calamine | IV. | ZnCO3 |
Choose the correct answer from the option given below.
