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MODERN PUBLICATION-GENERAL PRINCIPLE OF ISOLATION OF ELEMENTS-EXERCISE
- The highest oxidation state of transition metal is what ?
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- An ore of galena (PbS) is contaminated with Zinc blende (ZnS). Name on...
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- Name two ores of zinc
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- what is the name of purest form of iron
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- Name the purification process to get 100 % pure aluminium metal.
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- What is the role of stabilizer in froth floatation process ?
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- Although carbon and hydrogen are better reducing agents but they are n...
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- A mixture of compounds A and B is passed through a column of Al(2)O(3)...
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- Why is zinc and not copper used for the recovery of metallic silver fr...
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- Why is partial roasting of sulphide ore done in metallurgy of copper ?
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- What happens when potassium iodide is added to CuSO4 solution ?
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- Cast iron is harder than pure iron . Why ?
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- 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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