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Blue colour of CuSO(4) solution is disch...

Blue colour of `CuSO_(4)` solution is discharge slowly when an iron rod is dipped into it. Why?

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The correct Answer is:
Iron has more `E_(op)^(@)` than Cu and thus liberated `Cu^(2+)` ions from solution to discharge blue colour.
`Fe+CuSO_(4) to FeSO_(4)+Cu`
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RESONANCE ENGLISH-D BLOCK ELEMENTS-EXERCISE-2 PART-I
  1. Why is the E^(ϴ) value for the Mn^(3+)//Mn^(2+) couple much more posit...

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  2. Which is a stronger reducing agent Cr^(2+)or Fe^(2+) and why ?

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  3. Explain why Cu^(+) ion is not stable in aqueous solutions?

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  4. The aqueous solution of FeCl(3) is acidic . Why?

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  5. Ferric iodide is very unstable but ferric chloride is not

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  6. Copper dissolves in dilute nitric acid but not in dilute HCl. Why?

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  7. Blue colour of CuSO(4) solution is discharge slowly when an iron rod i...

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  8. Copper (I) ions are not known in aqueous solution.

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  9. Calculate the number of unpaired electrons in the following gaseous io...

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  10. Mercurous ion is written as Hg(2)^(2+) whereas cuprous ion is written ...

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  11. Copper sulphate dissolves in NH(4)OH solution but FeSO(4) does not.

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  12. An aqueous solution of inorganic compounds (X) gives following reactio...

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  13. H(2)S gas is passed through an acidic solution of K(2)Cr(2)O(7) .The s...

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  14. What happen when(i) a small amount of KMnO(4) is added to concentrated...

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  15. A hydrated mettalic salt(A). Light green in colour , on careful heatin...

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  16. A white substance (A) reacts with dilute H(2)SO(4) to produce a colour...

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  17. Write the balanced chemical equation for the following reaction:- Nitr...

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  18. Complete and balance the following equation: Ag(2)S+CuCl(2)+Hg....…....

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  19. Which out of the two ,La(OH)(3) and Lu(OH)(3), is more basic and why?

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  20. One among the lanthanoides, Ce(III), can be easily oxidized to Ce(IV) ...

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