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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
- Iron is obtained on large scale from Fe2O3 by:
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- Maganetic separtion is used for increasing concentration of the:
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- Which is not an iron ore?
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- Platinum, Palladium, Indium, etc. are called noble metals because:
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- Purest form of iron is called as
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- Sapphire is a mineral of :
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- The main ore of zinc is:
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- Calcium occurs in nature as:
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- The metal which cannot be extracted by smelting process?
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- Which does not contain aluminium:
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- Which is incorrect as the uses of limestone in industries are concerne...
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- Which is not a silver ore ?
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- Iron is made inactive or passive by:
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- The mineral of copper is:
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- Granulated zinc is obtained by:
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- After partial roasting, the sulphide of copper is reduced by:
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- Which process is not used in purification of bauxite ?
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- Electrolysis of fused carnallite gives:
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- Which is not an ore of leads ?
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- Coating of zinc on iron objects is commonly known as:
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