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From sodium argento cyanide Nal A CN, si...

From sodium argento cyanide Nal A CN, silver is proe pitated by adding a powder of

A

Tin

B

Zinc

C

Mercury

D

Calcium

Text Solution

Verified by Experts

The correct Answer is:
B
`Na[Ag(CN)_2] + Zn rarr Na_(2)[Zn(CN)_4] + Ag`
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To precipitate silver from sodium argento-cyanide, aluminium can be used . Comment.

To precipitate silver from sodium argentocyanide, aluminium can be used. Comment.

Knowledge Check

  • Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Ag is precipitated from an aqueous solution of sodium argentocynide by adding

    A
    Zn dust
    B
    Cu power
    C
    NaHg
    D
    `Na_(2)S_(2)O_(3)`

  • Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Which of the following statements about electrolytic refining of silver is not true

    A
    Anode consists of impure silver
    B
    cathode consists of pure silver
    C
    Electrolytic solution consists of `AgNO_(3) and HNO_(3)`
    D
    Elecipitated solution consists of `AgNO_(3) and HCl`

  • In the extraction of silver from argentite ore, the ore is treated with dilute solution of NaCN in water in the presence of Y, whereby the following reaction takes place Ag_2 X + 4 Na CN +2Y to 2 Na [Ag (CN )_2 ] Na_2 XO_4 X and Y in this reaction are represented by

    A
    Cl and S
    B
    S and `O_2`
    C
    O and `O_2`
    D
    O and S

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    Why is nitric acid added to sodium extract before adding silver nitrate for testing halogens?

    Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Leaching of Ag_(2)S is carried out by heating it with a dilute solution of

    In the extraction of silver from argentite are the one is treated with dilute solution of NaCN in water in the presence of Y, whereby the following reaction takes place. Ag_(2)X+4NaCN+2Y to 2Na[Ag(CN)_(2)]+Na_(2)XO_(4)X and Y in this reaction are repesented by

    The oxidising and reducing agents respectively for the cyanide extraction of silver from agentite ore are?

    The oxidising and reducing agents respectively for the cyanide extraction of silver from argentite ore are

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