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MODERN PUBLICATION-GENERAL PRINCIPLE OF ISOLATION OF ELEMENTS-EXERCISE
- Froth floatation process for the concentration of ores is a practical...
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- Which element is present in pitchblende :
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- The non-fusible impurities of ores are removed by adding :
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- Which is known as blister copper ?
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- Which process represents the following change , Ni(impure) +4CO to Ni...
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- The common method of extraction of metals from oxide ores involves :
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- The following equation represents a method of purification of nickel b...
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- Smelting is the reduction of oxide to metal by :
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- Which furnace can be used to get temperature above 3000@C ?
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- Heating of pyrite ores in air to remove sulphur is known as :
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- In froth floatation process many chemicals (frother, collector, activa...
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- Which substance is used as basic refractory material in furnace :
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- Iron ores are dressed by :
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- Which metal can be purified by distillation ?
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- The correct statement is :
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- Galena is an ore of :
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- To obtain chromium from chromic oxide Cr2O3,The method used is :
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- Argentite is a mineral of :
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- Cinnabar is :
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- What is Tyndall effect? What is it due to?
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