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Among the following pairs of ions the lo...

Among the following pairs of ions the lower oxidation state in aqueous solution is more stable than the other in

A

`Zn^(2+),Zn^(3+)`

B

`Cu^(+),Cu^(2+)`

C

`Cr^(2+),Cr^(3+)`

D

`V^(3+)`,`V^(5+)`

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The correct Answer is:
A
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RESONANCE-D BLOCK ELEMENTS-EXERCISE-2 PART-II
  1. Which of the following transition metal ions has the lowest density?

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  2. Of the ions Zn^(2+),Ni^(2+) and Cr^(3+) (atomic number Zn=30,Ni=28,Cr=...

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  3. Among the following pairs of ions the lower oxidation state in aqueous...

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  4. VO(2) is an amphoteric oxide and in acidic medium it form:

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  5. Which of the following transition metal shows the highest oxidation st...

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  6. Standard reduction electrode potential of Zn^(2+)//Zn is -0.76V. This ...

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  7. E^(Theta) value for the couple Cr^(3+)//Cr^(2+) and Mn^(3+)//Mn^(2+) a...

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  8. Which one of the following show highest magnetic moment?

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  9. Amongest the following the lowest degree of paramagnetism per mole of ...

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  10. Which one of the transittion metal ions is coloured in aqueous solutio...

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  11. Compound that is both paramagnetic and coloured is:

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  12. Which of the following is expected to be coloured?

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  13. Most transition metals:(I) Form sets of compounds which display differ...

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  14. The aqueous solution of the following salts will be coloured in the ca...

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  15. Which one of the following characteristics of the transition metals is...

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  16. German silver is an alloy of copper and:

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  17. Ferric sulphate on heating gives:

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  18. Anhydrous ferric chloride is prepared by:

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  19. At 3000^(@)C FeCl(3):

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  20. Iron is rendered passive by treatment with concentrated :

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