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Extraction of gold and silver involves l...

Extraction of gold and silver involves leaching with `CN^(-)` ion. Silver is later recovered by

A

Liquation

B

Distillation

C

Zona refining

D

Displacement with Zn

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Extraction of gold and silver involves leaching the metal with CN^(-) ion. The metal is recovered by :

    A
    displacemetn of metal by some other metal from the complex ion
    B
    roasting of metal complex
    C
    calcination followed by roasting
    D
    thermal decomposition of metal complex.

  • Extraction of gold and silver involves leaching the metal with CN^(-) ion. The metal is recovered by:

    A
    displacement of metal by some other metal from the complex ion.
    B
    roasting of metal complex.
    C
    calcination followed by roasting.
    D
    thermal decomposition of metal complex.

  • Extraction of gold and silver involves leaching the metal with CN^(-) ion. The metal is recovered by:

    A
    displacement of metal by some other metal from the complex ion.
    B
    roasting of metal complex.
    C
    calcination followed by roasting.
    D
    thermal decomposition of metal complex.
    • AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-C) Previous Years Question
    1. Extraction of gold and silver involves leaching with CN^(-) ion. Silve...

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    2. Aluminium is extracted from Alumina (Al(2)O3 ) by electrolysis of a mo...

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    3. In the extraction of copper fromo its sulphide ore, the metal is forme...

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    4. Identify the alloy containing a non-metal as a constitutent in it.

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    5. Which ore of the following is a mineral of iron ?

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    6. Which of the following pairs of metals is purified by van-Arkel method...

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    7. Which of the following elements is present as the impurity to the maxi...

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    8. The following reaction take place in the blast in the preparation of i...

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    9. Match the following

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    10. Which of the following statements, about the advantage of roasting of ...

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    11. Sulphide ores of metals are usually concentrated by froth floatation p...

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    12. The mass of carbon anode consumed (giving only carbon dioxide) in the ...

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    13. In which of the following processes, fused sodium hydroxide is electro...

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    14. Which of the following does not contain aluminium?

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    15. Which of the following does not contain Mg?

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    16. Carborundum is

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    17. In the basic Bessemer process for the manufacture of steel, the lining...

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    18. Mond's process is used for

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    19. Which process of purification is represented by the following reaction...

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    20. Which of the following sulphides when heated strongly in air gives the...

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