Which of the following metal is leached ...

Which of the following metal is leached by Cyanide process

Ore of `Al`

Ore of `Cu`

Ore of `Ag`

Ore of `Zn`

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Which of the following is/are correct for cyanide process of extraction of gold?

Which of the following metal is extracted by amalgamation process?

Which of the following metals is obtained by leaching its ore with dilute cyanide solution ?

Which of the following metals is not extracted by leaching ?

Which of the following metal is purified by distilation process?

Which of the following metals is obtained by the self reduction process?

Metallic gold frequently is found in aluminosilicate rocks and it is finely dispersed among other minerals. It may be extracted by treating the crushed rock with aerated sodium cyanide solution. During this process metallic gold is slowly converted t [Au(CN)_(2)]^(-) , which is soluble in water. After equlibrium has been reached, the aqueous phase is pumped off and the metallic gold is recovered from it by reacting the gold complex with zinc, which is converted to [Zn(CN)_(4)]^(2-) , Gold in nature is frequently alloyed with silver is also oxidised by aerated sodium cyanide solution. Which of the follwing is/are correct for cyanide process of extraction of gold?

Which of the following metal is purified by using Mond's process.

Which of the following metals cannot be extracted by carbon reduction process?

Which of the following metals cannot be extracted by the smelting process ? Al, Zn, Fe and Pb .

AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)

The final stage of self reduction for the extraction of Cu is carried ...
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Zinc is extracted from zinc oxide by its reaction with coke in
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Which of the following metal is leached by Cyanide process
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Hall Heroult method is used for the extraction of
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During the collection of Al by Hall Heroult method, how much of graphi...
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boiling process is used for:
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Impure zince, as collected from earthen clay retort, is called
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What is the material collected from reverberatory furnace in the metal...
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During smelting, an additional substance is added which combines with ...
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Sulphide ores of metals are usually concentrated by froth floatation p...
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Heating pyrites to remove sulphur is called
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The process of converting hydrated alumina into anhydrous alumina is c...
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The electrolytic solution used for extraction of Al in Hall Heroult me...
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The extraction of zinc from zinc blende is achieved by :
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Given below are the steps for extraction of copper from its ore. Write...
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Which of the following metals is purified by distillation process ?
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Vapour phase refining can be carried out in case of
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Zone refining is based on the principle that .
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Which of the following is not a method of purification of metals ?
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Assertion: Zone refining method is used to produce pure metals which a...
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