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NIKITA PUBLICATION-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-Multiple choice questions
- The colour of zinc sulphide is
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- The formula of haematite is
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- From a solution of CuSO4 the metal used to recover copper is
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- The formula of limonite is
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- In metallurgy, flux is a substance used to convert
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- Which of the following benefication processes is used for the mineral ...
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- Write about Alumino thermic process with examples.
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- In the electrolysis of alumina, cryolite is added to
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- Aluminium is more reactive than iron. But aluminium is less easily cor...
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- Heating pyrites to remove sulphur is called
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- The main function of roasting is
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- Zone refining is a method to obtain
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- Van Arkel method of purification of metals involves converting the met...
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- Electrolytic reduction method is used fro the extraction of
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- When copper is placed in the atmosphere for sufficient time, a green c...
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- Roasting of copper pyrites is done
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- In the metallurgy of iron, when limestone is added to the blast furnac...
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- The slag obtained during the extraction of copper from coper pyrites i...
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- Copper matte consists of:-
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- Which method is based on distribution principle?
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