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A reagent is added to a solution of mang...

A reagent is added to a solution of manganous salt in cold dil. `HNO_(3)`. A purple colour appeared due to the formation of permanganic acid. The reagent is:

A

`NaBiO_(2)`

B

`(NH_(4))_(2)C_(2)O_(4)`

C

`H_(2)O_(2)`

D

`KNO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`2MnSO_(4)+5NaBiO_(3)+16HNO_(3)rarr2HMnO_(4)+5Bi(NO_(3))_(3)+NaNO_(3)+2Na_(2)SO_(4)+7H_(2)O`
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Knowledge Check

  • Sodium nitroprusside, when added to an alkaline solution of sulphide ions, produces purple colour ion due to the formation of

    A
    `Na[Fe(H_(2)O)_(5)NOS]`
    B
    `Na_(2)[Fe(H_(2)O)_(5)NOS]`
    C
    `Na_(3)[Fe(CN)_(5)NOS]`
    D
    `Na_(4)[Fe(CN)_(5)NOS]`

  • In fourth group, Mn(OH)_2 on heating with PbO_2 and conc. HNO_3 gives purple colour due to the formation of

    A
    `HMnO_4`
    B
    `K_2 MnO_4`
    C
    `PbO_2`
    D
    `PbMnO_3`

  • Sodium nitroprusside, when added to an alkaline solution of sulphide ions, produces purple colour ion due to the formation off

    A
    `Na[Fe(H_(2)O)_(5)NOS]`
    B
    `Na_(2)[H_(2)O)_(5)NOS]`
    C
    `Na_(3)[Fe(CN)_(5)NOS]`
    D
    `Na_(4)[Fe(CN)_(5)NOS]`

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