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MODERN PUBLICATION-GENERAL PRINCIPLE OF ISOLATION OF ELEMENTS-EXERCISE
- Calculate the oxidation number of chromium in K2Cr2O7.
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- Explain why CuSO4 is blue while ZnSO4 is white.
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- What is flux? Give an example.
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- What is calcination?
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- What is electro-refining ? Give one example .
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- Distinguish between flux and slag ?
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- What is the function of limestone the extraction of iron? Give equatio...
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- What is roasting?
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- How slag is formed in metal extraction ?
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- Distinguish between mineral and ore.
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- What is difference between calcination and roasting ?
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- What is self-reduction in metallurgy? Give example.
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- What is leaching ? Glve an example.
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- Why cannot Al be reduced by carbon ?
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- What is the role of stabilizer in froth floatation process ?
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- It is true that under certain conditions magnesium can reduce SiO(2) ...
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- What is the significance of leaching in the extraction of aluminium?
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- What is the role of graphite rods in the electrometallurgy of aluminiu...
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- Out of C and CO which is a better reducing agent for ZnO ?
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- Explain CaO react with SiO(2) to form a slag ?
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