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USHA PUBLICATION-GENERL PRINCIPAL AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
- In Goldschmidt thermite process the reducing agent is .
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- To obtain chromium from chromite the method used is .
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- Complex formation method is used for extraction of .
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- The process in which metal is obtained in molten state is called as of...
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- Electrolytic reduction technique is used for extraction of
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- Cryolite is .
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- Heating of sulphide ore in presence of air is called as .
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- The furnace lining in steel manufacture consists of
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- The furance which gives highest temperature is .
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- Which of the following is not a basic flux ?
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- Nickel can be purified by process.
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- In aluminothermic process, aluminium is used as
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- Extraction of zinc from zinc blende is achived by
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- Which of the following metals exists as nuggets?
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- Calcium silicate is a .
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- Carbon reduction process is not used for extraction of
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- Which of the following is an oxide ore ?
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- Common impurities present in bauxite ore are .
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- In which zone of the blast furance temperature is maximum ?
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- Which of the following contains highest % of carbon?
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