General Principles And Processes of Isolation Of Elements

Multiple Choice Questions

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In Mc Arthur forest method, silver is extracted from the solution of Na[Ag(CN)2] by the use of:

  • Fe

  • Mg

  • Cu

  • Zn

D.

Zn

In Mc Arthur Forest method, silver is extracted from the solution of sodium agenticyanide by using zinc.

2Na[Ag(CN)2] + Zn → Na2[Zn(CN)4] + 2Ag ↓ 

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    Which of the following is not an ore of magnesium?

    • Magnesite

    • Dolomite

    • Gypsum

    • Carnallite

    Answer

    Gravity separation process is used for the concentration of:

    • calamine

    • haematite

    • chalcopyrite

    • bauxite

    Answer
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