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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
- Heating of pyrite ores in air to remove sulphur is known as :
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- Among the following group of oxides, the group containing oxides that ...
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- The electrolytic reduction technique is used in the extraction of :
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- Furances are lined with calcium oxide because :
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- The process in which ore is heated in air below its melting point is k...
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- The mental that is extracted from sea water is :
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- Extraction of metal from sulphide ore is made by :
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- Which of the following processes involves the roasting process ?
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- Corundum is :
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- Which metal is sometimes found in native state ?
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- Which elements found in human body :
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- presence of small impurity usually makes a metal quite hard because th...
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- The phenomenon in which white transparent crystal changes into white p...
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- Which substance can be used for drying basic gases :
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- The cheap and high melting point compound used in furnace lining is :
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- Which element occurs freely in nature ?
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- The lightest metal is :
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- Which of the elements listed below shows allotropic forms?
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- The most malleable metal is :
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- Concentration of the ore is done :
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