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A white crystalline substance dissolves in water.On passing `H_(2)S` in this solution, a black precipitate is obtained.The black precipitate dissolves completely in hot `HNO_(3)`.On adding a few drops of concentrated `H_(2)SO_(4)`, a white precipitate is obtained.This precipitate is that of

A

`BaSO_(4)`

B

`SrSO_(4)`

C

`PbSO_(4)`

D

`CdSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Pb^(+2)+H_(2)S underset(acidic)tounderset(("black ppt."))(PbS)darr+H_(2)uarr`
`3PbS+8HNO_(3)to3Pb(NO_(3))_(2)+2NO+3S+4H_(2)O`
`Pb(NO_(3))_(2)+H_(2)SO_(4)to underset(("white ppt."))(PbSO_(4))darr+2HNO_(3)uarr`
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A white crystalline substance dissolves in water. On passing H_2 S in this solution, a black ppt. is obtained. The black ppt. dissolves completely in hot HNO_3 . On adding few drops of conc. H_2 SO_4 , a white ppt. is obtained. The ppt. is that of

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Knowledge Check

  • A white crystalline substance dissolves in water.On passing H_(2)S in this solution, a black precipitate is obtained.The black precipitate dissolves completely in hot HNO_(3) .On adding a few drops of concentrated H_(2)SO_(4) , a white precipitate is obtained which is soluble in ammonium acetate.The white precipitate is that of ,

    A
    `BaSO_(4)`
    B
    `SrSO_(4)`
    C
    `PbSO_(4)`
    D
    `Ag_(2)SO_(4)`

  • A white crystalline substance dissolves in hot water. On passing H_(2)S in this solution, black precipitate is obtained. The black precipitate dissolves completely in hot HNO_(3) . On adding a few drops of conc. H_(2)SO_(4) , a white precipitate is obtained. this substance is :

    A
    `BaSO_(4)`
    B
    `SrSO_(4)`
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  • A light green coloured salt was soluble in water. On passing H_(2)S into the solution a black precipitate was obtained which dissolved readily in HC. The metal ion present is

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    `Co^(2+)`
    B
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    `Ni^(2+)`
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