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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -ADDITIONAL QUESTIONS & ANSWERS ( FILL IN THE BLANKS )
- Aluminium reacts with caustic alkalis to form .
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Play - Copper pyrite , copper glance and cuprite are ores of .
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Playing Now - Copper pyrite yields nearly % of the world production of copper .
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Play - Blister copper contains % of pure copper and % of impurities .
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Play - When electric current is passed through the electrolytic solution, ...
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Play - Haematite, magnetite and Iron pyrite are ores of .
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Play - Chlorine reacts with copper , resulting in the formation of .
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Play - The number of periods in the modern periodic table is .
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