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Explain why Cu^(+) ion is not stable in ...

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

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`Cu^(o+)` in aqueous solution undergoes disproportionation, i.e.,
`2Cu^(o+)toCu^(2+)Cu`
The `E^(ɵ)` value of this is favourable.
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(a) Why do transition metals and their compounds are found to be good catalysts? (b) The 5d series of transition metals have more frequent metal-metal bonding in their compounds than do the 3d and 4d metals. Explain. (c ) Why do transition metals form complexes? (d) Explain why Cu^+ ion is not stable in aqueous solution. (e ) Why is europium (II) more stable than cerium (II)?

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Assertion : Cu^+ ion is not stable in aqueous solution. Reason : Cu^+ contains 3d-filled subshell.

State the reason for the following : (i) Cu (I) ion is not stable in an aqueous solution. (ii) Unlike Cr^(3+),Mn^(2+),Fe^(3+) and the subsequent other M^(2+) ions of the 3d series, the 4d and 5d series metals generally do not form stable oxidation states.

Cu^(+) ion is not stable in aqueous solution because because of dispropotionation reaction. E^(@) value of disproportionation of Cu^(+) is [E_(Cu^(2+)//Cu^(+))^(@)=+ 0.15 V, E_(Cu^(2+)//Cu)^(@)=0.34 V]

CENGAGE CHEMISTRY-APPENDIX INORGANIC VOLUME 2-Short Answer Type
  1. Explain why Cu^(+) ion is not stable in aqueous solutions ?

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  2. Which metals are generally extracted by the electrolytic processes ? W...

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  3. What type of ores are roasted?

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  4. Give the names of the four most abundant elements in the earth's crust...

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  5. What is a mineral? How does it differ from an ore?

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  6. Why do some metals occur in the native state?

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  7. Name the method used for refining of : (a). Zirconium. (b). Nickel...

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  8. Can iron be purified by amalgamation?

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  9. Both iron and aluminium combine slowly with oxygen at room temperature...

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  10. What is the name given to solid phase of earth?

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  11. Give one example where hydrometallurgy is used for metal extraction?

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  12. Name the method of metal refining which is generally used when a metal...

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  13. When is electrolytic reduction applied for getting a metal?

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  14. What name is given to carbon reduction process for extracting the meta...

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  15. An ore has impurities which are attracted by magnet suggest process fo...

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  16. In moist air, copper corrodes to produce a green layer on the surface....

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  17. The value of triangle(f)G^(ɵ)(Cr2O3)=-540kJmol^-1 and triangle(f)G^(ɵ)...

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  18. What do you understand by roasting in presence of NaCl?

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  19. Why NF3 cannot be hydrolysed, while NCl3 can be readily hydrolysed?

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  20. Why NI5 does not exist While PCl5 exists?

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  21. Why the boiling point of ammonia is greater than phosphine?

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