Write the equations involved in the extr...

Write the equations involved in the extraction of gold by cyanide process. Mention the role of Zn.

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CHHAYA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-SOLVED NCERT EXEMPLAR PROBLEMS (Short Answer Type)

An external emf of 2.2 V is required for the manufacture of Cl(2) from...
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Coke can be used to reduce FeO to Fe at temperatures above 1073K. Just...
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Wrought iron is the purest form of iron. Write the reactions involved ...
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How can copper be extracted from low grade copper ores?
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Mention two primary requirements for the purification of metals by Mon...
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Although carbon and hydrogen are good reducing agents, they are not us...
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Name two sulphide ores which can be separated by froth-floatation.
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The purest form of iron is prepared by oxidising the impurities presen...
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A mixture of two compounds 'A' and 'B' is allowed to pass through a co...
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Copper sulphide ore is heated in a furnace with silica-why?
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Explain why a sulphide ore is converted into an oxide before reduction...
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What is the role of flux in extraction of metals?
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How are the metals used as semiconductors purified? Explain the princi...
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Write the reaction taking place during the extraction of iron in the b...
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Mention two important requirements of vapour phase refining.
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Write the equations involved in the extraction of gold by cyanide proc...
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