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GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
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CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (True/False)
- Smelting is the process of heating the ore with magnesium.
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Playing Now - Alkali metals are generally extracted by electrolysis of their ores.
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Play - Levigation is generally employed for concentration of sulphide ores.
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Play - Every mineral is an ore, but every ore is not a mineral.
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Play - Slag is a product formed during smelting by combination of flux and im...
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Play - Alkali metals can be obtained by chemical reduction of their compounds...
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Play - Sylvine is an ore of potassium.
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Play - Oxide ore are purified by levigation process.
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Play - During electrorefining of a metal, impure metal is made anode.
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Play - Highly pure metal can be obtained by zone refining
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Play - Aluminium is the most abundant metal in the earth's crust.
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Play - Reactive metals occur in native state.
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Play - The process of calcination and roasting is carried out in reverberator...
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Play - In calcination, ore is heated strongly in the absence of air
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Play - Copper is found both in free as well as in combined state in nature.
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Play - Below 1623 K, Al can reduce MgO to Mg, but above 1623 K, reverse is tr...
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Play - Mond's process is used for purification of titanium.
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Play - KCN forms soluble complex with silver galance.
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Play - Zinc blende on roasting often gives Zn metal.
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Play - Silver is extracted by hydrometallurgy.
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