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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^(2+)`is more stable in aq. medium then Cut due to high `triangleH_(hyd)`of `Cu^(2+)`
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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)?

(a) Write the electronic configuration of: (i) Co^(2+) (27) (ii) Ce^(4+)(58) (iii)Lu^(2+) (71) . (b) Explain why Cution is not stable in aqueous solution.

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]

AAKASH INSTITUTE- ALCOHOLS, PHENOLS AND ETHERS-Assignment Section -D (Assertion - reason type question)
  1. Explain why cu^(+) ion is not stable in aqueous solutions?

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  2. A : p - nitrophenol has high pK(a) in comparison to o-nitrophenol ...

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  3. A : When C(2) H(5) - O- CH(3) is reacted with oen mole of Hl then C(2...

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  4. A : When 3,3-dimethyl butan - 2 - ol is heated in presence of concentr...

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  5. A : In esterification reaction , HCOOH is the most reactive acid among...

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  6. A : Ethers can't be distilled upto dryness due to fear of explosion . ...

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  7. A : Phenol does not react with NaHCO(3) . R : Phenol is less acid...

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  8. A : CH(3) - underset(O)underset(||)(C)-COOH gives haloform reaction ...

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  9. A : Diphenyl ether is prepared by Williamson synthesis . R : This...

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  10. A : Grignard's reagent is prepared in the presence of ether . R :...

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  11. A : CH(3) - underset(CH(3))underset(|)overset(CH(3))overset(|)(C)-CH=...

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  12. A : Two moles of Grignard reagent is consumed in the formation of ter...

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  13. A : CH(3)-underset(CH(3))underset(|)overset(CH(3))overset(|)(C)-O-CH...

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  14. A : Ortho - cresol is weaker acidic than meta-cresol . R : It is d...

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  15. A : Among all ortho halophenol , fluorophenol is least acidic . R ...

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  16. A : In esterification reaction alcohol act as nucleophile . R : ...

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  17. A : Phenol is manufactured by Dow 's pocess. R : It involves the ...

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  18. A : Primary alcohol is prepared by the reaction of primary amine with ...

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  19. A : Thte reactivity order of alcohols is 1^(@) gt 2^(@) gt 3^(@) for...

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  20. A : The dehydration of ethyl alcohol in presence of Al(2)O(2) at 633 ...

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