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प्रश्न
Explain the following:
Generally sulphide ores are converted into oxides before reduction.
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उत्तर
Sulphide ores cannot be reduced easily but oxide ores can be easily reduced, hence sulphide ores are generally converted into oxides before reduction.
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संबंधित प्रश्न
The reaction,
Cr2O3 + 2Al → Al2O3 + 2Cr
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Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
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(i) Haematite
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Explain the following:
\[\ce{CO2}\] is a better reducing agent below 710 K whereas \[\ce{CO}\] is a better reducing agent above 710 K.
Explain the following:
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\[\ce{Au + CN^- + H2O + O2 -> [Au(CN)2]^- + OH^-}\]
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