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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
- A basic lining is given to a furnace by using
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- The important oxide ore of iron is
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- The metal extracted by cyanide process is
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- Malachite is an ore of
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- Heating an ore in the absence of air below its melting point is called
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- Silver containing lead as an impurity is purified by
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- Which one of the following reactions is an example for calcinaion proc...
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- Which of the following metals is obtained by electrolytic reduction pr...
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- Cassiterite is concentrated by
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- Cassiterite is an ore of
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- Which of the following flux is used to remove acidic impurities in met...
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- Which of the following element is extracted commercially by the electr...
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- Galena is an ore of
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- Cryolite is
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- In the extractionof iron, slag is produced. Slag is
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- Froth floatation process is used for the metallurgy of
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- Flux is used to
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- Which one of the following elements does not exist in the native form ...
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- Heating pyrites to remove sulphur is called
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- Nickel is purified by thermal decomposition of its
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