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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
- The purity of blistered copper is 90% .
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- Galvanised iron sheets have coating of :
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- Important iron ore is iron pyrite
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- Purest form of iron is cast iron. True or False
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- Fe3O4 is known as haematite. True or False
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- Copper metal obtained from Bessemer converter is known as .
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- Cast iron contains maximum percentage of carbon. Is it true or false?
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- Azurite is the ore of iron. Is it true or false?
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- German silver is alloys of silver. True / False
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- Define gangue, flux and slag with a suitable 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 silica in copper extraction ?
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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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