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Chemistry
6. General Principle and Processes of Isolation of Elements
Home · Class 12 · Chemistry · Chemistry - Exemplar · 6. General Principle and Processes of Isolation of Elements
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Q37 of 52 Page 82

Why aresulphide ores converted to oxide before reduction?

Sulphide ores cannot be easily reduced so they are usually converted to oxides because oxides can be reduced easily.


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35

The mixture of compounds A and B is passed through a column of Al2O3 by using alcohol as eluant. Compound A is eluted in preference to compound B. Which of the compounds A or B, is more readily adsorbed on the column?

36

Why is sulphide ore of copper heated in a furnace after mixing with silica?

38

Which method is used for refining Zr and Ti? Explain with equation.

39

What should be the considerations during the extraction of metals by electrochemical method?

Questions · 52
6. General Principle and Processes of Isolation of Elements
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