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A black sulphide is formed by the action...

A black sulphide is formed by the action of `H_(2)S` on

A

Cupric chloride

B

Cadmium chloride

C

Zinc chloride

D

Sodium chloride

Text Solution

Verified by Experts

The correct Answer is:
A
`CuCl_(2)+H_(2)S to underset(("black ppt."))(Cus)+2HCl`
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Knowledge Check

  • H_(2)O_(2) restores the colour of old lead paintings, blackened by the action of H_(2)S gas by :

    A
    converting `PbO_(2)` to Pb
    B
    by oxidising PbS to `PbSO_(4)`
    C
    converting `PbCO_(3)` to Pb
    D
    oxidising `PbSO_(3)` to `PbSO_(4)`

  • Yellow ammonium sulphide is obtained by passing H_(2)S into

    A
    `(NH_(4))_(2)CO_(3)`
    B
    a mixture of `NaOH` and `NH_(3)`
    C
    `NH_(3)`
    D
    a mixture of `NH_(3)` and `NH_(4)Cl`

  • Assertion: Conversation of black lead painting is made to white by the action of H_(2)O_(2) . Reason: Sulphur is oxidised to SO_(4)^(2-)

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explantion of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

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    Hg_(2)^(2+) when reacts with H_(2)S , black ppt. (A) formed which when reacts with Na_(2)S followed by filtration leaving behind black ppt. (B). The filitrate with H^(+) gives black ppt. (C). A, B and C are:

    Assertion:- The colour of old lead paintings can be retored by washing with dilute solution of H_(2)O_(2) Reason:- Black lead sulphide is oxidised by H_(2)O_(2) to white lead sulphate.

    Which of the following sulphide(s) does/do not liberate H_(2)S on warming with dil. HCl?

    Which of the following sulphide(s) does/do not liberate H_(2)S on warming with dil. HCl?

    The solubility of metal sulphides in saturated solution of H_2S {H_2S= 0.1 M} can be represented by MS + 2H^+ Leftrightarrow M^(2+) +H_(2) S, K_(eq)=([M^(2+)][H_(2)S])/([H^(+]^2) The value of K_(eq) is given for few metal suphide. If conc. of each metal ion in solution is 0.01 M, which metal sulphides are selectively ppt at total [H^+]= 1M in saturated H2S solution. Metal sulphides Mns ZnS Cos Pbs K_(eq)=([M^(2+)][H_(2)S])/([H^(+]^2)

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