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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -TEST YOUR GRIP (I.MULTIPLE CHOICE QUESTIONS)
- Which one of the following is most abudant in earth crust ?
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- The metal always found in the free state is
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- Copper is extracted from
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- The salt which is least likely to be found in mineral is
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- Which of the following benefication processes is used for the mineral ...
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- Ore dressing for iron is done by
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- Heating pyrites to remove sulphur is called
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- For which of the following ores, froth floatation process is appli...
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- Consider the following reaction at 1000^(@)C (A) Zn (s) + (1)/(2) O...
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- Which of the following reactions taking place in the blast furnace dur...
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- Smelting involves reduction of metal oxide with
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- During smelting, an additional substance is added which combines with ...
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- Which step is not involved in hydrometallurgical process ?
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- Which method is not correct for refining of crude metals ?
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- Mond's process is used for refining of
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- In the process of extraction of gold. Roasted gold ore +CN^(-)+H(2)O...
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- In extraction of gold, zinc acts as
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- The method of zone refining of metals is based on the principle of :
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