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Hydro-metallurgical process of extractio...

Hydro-metallurgical process of extraction of metals is based on

A

Complex formation

B

Hydrolysis

C

Dehydration

D

Dehydrogenation

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Verified by Experts

The correct Answer is:
A
For example, `Ag_2S` is converted into )]. `Na[Ag(CN)_2]`. When Zn is added, Ag is displaced.
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Knowledge Check

  • Which of the following metallurgical process for the extraction of indicated metals is CORRECT ?

    A
    Aluminothermic process :- Al- metal
    B
    Self reduction process :- Cu - metal
    C
    Carbon reduction process :- Ag metal
    D
    Electrolytic reduction method :- Fe metal

  • Hydro metallurgy is used in the extraction of

    A
    Cu
    B
    Au
    C
    Ag
    D
    All

  • The process of differential extraction is based upon

    A
    different solubilities
    B
    different molecular masses
    C
    different boiling points —
    D
    different chemical properties
    • ERRORLESS-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-NCERT BASED QUESTIONS (Refining of Crude Metal)
    1. Hydro-metallurgical process of extraction of metals is based on

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    2. Cyanide process is used for the extraction of :

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    3. In the electrolytic refining of a metal, the impure metal is made the

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    4. Zone refining method is used for refining

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    5. Zone refining is used for purification of :

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    6. In order to refine “blister copper” it is melted in a furnace and is s...

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    7. Gold is extracted by hydrometallurgical procees based on its property

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    8. Zone refining is based on the principle that

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    9. One of the following metals forms a volatile compound and this propert...

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    10. Cupellation process is involved in the metallurgy of

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    11. The temperature of the slag zone in the metallurgy of iron using blast...

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    12. Van Arkel method of purification of metals involves converting the met...

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    13. A metal which is refined by poling is

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    14. Van Arkel method of refining zirconium involves

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    15. In the extraction of chlorine by electrolysis of brine.

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    16. Brine is electrolysed by using inert electrodes. The reaction at anode...

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    17. Which method of purification is represented by the following equations...

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    18. The function of fluorspar in the electrolytic reduction of alumnia dis...

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    19. In the commercial electrochemical process for aluminium extraction, th...

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    20. The purification of alumina is called

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