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(i)A blue coloured compound (A) on heati...

(i)A blue coloured compound `(A)` on heating gives two product `(B)` & `( C)`.
(ii)A metal `(D)` is deposited on passing hydrogen through heated `(B)`.
(iii)The solution of `(B)` in `HCl` on treatment with the `[Fe(CN)_(6)]^(4-)` gives a chocolate brown coloured precipitate of compound `(E)`.
(iv)`(C )` turns lime water milky which disappears on continuous passage of `(C )` forming a compound `(F)`.
Identigfy `(A)` to `(F)` and give chemical equations for the reactions at step (i) to (iv).

A

`CuSO_(4)`

B

`CuCO_(3)`

C

`FeSO_(4)`

D

`CrCl_(3)`

Text Solution

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The correct Answer is:
B

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(C) turns lime water milky which disappears on continuous passage of (C) forming a compound (F). Identify (A) to (F) and give chemical equations for the reactions at step (i) to (iv).

The solution of (B) in HCl on treatment with the K_(4)[Fe(CN)_(6)] is gives a chocolate brown coloured precipitate of compound (E).

Knowledge Check

  • A bluish green coloured compound A on heating gives two products B and C . A metal D is deposited on passing H_(2) through heated B. The compound A and B are insolulbe in water. B is black in colour , dissolves in HCl and on treatment with K_(4)[Fe(CN)_(6)] gives a chocolate brown ppt of compound E. C is colourless, odourless gas and turns lime water milkly. The compounds B and C are respectively

    A
    `CuS,SO_(2)`
    B
    `CuO,CO_(2)`
    C
    `FeO,H_(2)S`
    D
    `Cr_(2)O_(3),CO`
  • A bluish green coloured compound A on heating gives two products B and C . A metal D is deposited on passing H_(2) through heated B. The compound A and B are insolulbe in water. B is black in colour , dissolves in HCl and on treatment with K_(4)[Fe(CN)_(6)] gives a chocolate brown ppt of compound E. C is colourless, odourless gas and turns lime water milkly. The compounds D and E are respectively.

    A
    `Cu,Cu_(2)[Fe(CN)_(6)]`
    B
    `Fe,Cu_(2)[Fe(CN)_(6)]`
    C
    `Cr,CuCO_(3)`
    D
    `ZnCuO`
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