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Turnbull's blue is a compound...

Turnbull's blue is a compound

A

`{:(III" "II),(KFe[Fe(CN)_(6)]):}`

B

`{:(II" "III),(KFe[Fe(CN)_(6)]):}`

C

`{:(III" "II),(Na_(2)[Fe(CN)_(5)NO]):}`

D

`{:(II" "III),(Fe_(4)[Fe(CN)_(6)]_(3)):}`

Text Solution

Verified by Experts

(A) and (D) are components of Prussian blue , (C ) is sodium nitropusside , (B) is Turnbull's blue.
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Turn bull's blue is a compound

The reaction of K_3[Fe(CN)_6] eith freshly prepared FeSO_4 solution procues a dark blue precipitate caleed Turnbull's blue. Reaction of K_4[Fe(CN)_6] with the FeSO_4 solution in complete absence of air produces a white precipitate X, which turns blue in air. Mixing the FeSO_4 solution with NaNO_3 , followed by a slow addition of concentrated H_2SO_4 through the side of the test tube produces a brown ring. Precipitate X is

Knowledge Check

  • Turnbull's blue is formed when Fe^(+2) ions are added to K_(3)[Fe(CN)_(6)]_(2) Turnbull's blue is

    A
    `Fe_(4)[Fe(CN)_(6)]_(3)`
    B
    `Fe_(3)[Fe(CN)_(6)]_(2)`
    C
    `Fe_(2)[Fe(CN)_(6)]`
    D
    All

  • Turnbull's blue is formed when Fe^(+2) ions are added to K_(3)[Fe(CN)_(6)] . Turnbull's blue is:

    A
    `K_(2)Fe(Fe(CJN)_(6)]`
    B
    `Fe_(3)[Fe(CN)_(6)]_(2)`
    C
    `Fe_(2)[Fe(CN)_(6)]`
    D
    All of these

  • Recent X-ray work, IR and other spectroscopic methods have proved that Turnbull's blue is identical to Prussian blue. Q. What is the common formula of Turnbull's blue and Prussian blue?

    A
    `Fe_(3)[Fe(CN)_(6)]_(2)`
    B
    `Fe_(4)[Fe(CN)_(6)]_(3)`
    C
    `KF e[Fe(CN)_(6)]`
    D
    `KF e_(2)[Fe(CN)_(6)]`

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    The reaction of K_3[Fe(CN)_6] eith freshly prepared FeSO_4 solution procues a dark blue precipitate caleed Turnbull's blue. Reaction of K_4[Fe(CN)_6] with the FeSO_4 solution in complete absence of air produces a white precipitate X, which turns blue in air. Mixing the FeSO_4 solution with NaNO_3 , followed by a slow addition of concentrated H_2SO_4 through the side of the test tube produces a brown ring. Among the following, the brown ring is due to the formation of

    Although the chemical formulae of Prussian blue and Turnbull's blue are different yet these are supposed to be identical. How is it justified?

    Recent X-ray work, IR and other spectroscopic methods have proved that Turnbull's blue is identical to Prussian blue. Q. What is the common formula of Turnbull's blue and Prussian blue?

    Recent X-ray work, IR and other spectroscopic methods have proved that Turnbull's blue is identical to Prussian blue. Q. Intense blue colour arises as a result of:

    Recent X-ray work, IR and other spectroscopic methods have proved that Turnbull's blue is identical to Prussian blue. Q. Intense blue colour arises as a result of:

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