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CBSE COMPLEMENTARY MATERIAL-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Very Short Answer Type Questions
- Name three metals which occur in native state in nature.
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- Give the names and formulae of three ores which are concentrated by fr...
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- Among Fe, Cu, Al and Pb, which metal(s) cannot be obtained by smelting...
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- What is the thermodynamic criteria for the feasibility of a reaction ?
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- Why can’t aluminium be reduced by carbon ?
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- Name the most important form of iron. Mention its one use.
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- What is the composition of 'Copper matte'?
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- Which form of copper is called blister copper ?
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- What are froth stabilizers ? Give two examples.
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- A sample of galena is contaminated with zinc blende. Name one chemical...
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- One of the consituents of German silver is
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- Why is froth floatation process selected for the concentration of the ...
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- Write the reaction involved in the extraction of copper from low grade...
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- Although aluminium is above hydrogen in the electrochemical series, it...
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- Which method of parification is represented by the following equation...
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- Zinc is used but not copper for the recovery for metallic silver from ...
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- Write the composition of moleten mixture which is electrolysed to extr...
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