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Which one of the following ions will exh...

Which one of the following ions will exhibit colour in aqueous solutions

A

`Sc^(3+), Ti`

B

`Sc^(3+), Co^(2+)`

C

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

D

`Ni^(2+), Ti^(3+)`

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. The basic character of the transition metal monoxides follows the orde...

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  2. The correct order of ionic radii of Y^(3+), La^(3+), Eu^(3+) and Lu^(3...

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  3. Which one of the following ions will exhibit colour in aqueous solutio...

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  4. The number of moles of KMnO4 that will be needed to react with one ...

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  5. Which one of the following ions will exhibit colour in aqueous solutio...

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  6. The correct order of decreasing second ionisation enthalpy of Ti (22),...

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  7. Which of the 3d-series of transition elements exhibits the largestn nu...

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  8. Which one of the following ions will exhibit colour in aqueous solutio...

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  9. Which of the following pairs has the same size ?

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  10. Acidified K2Cr2O7 solution turns green when Na-2SO3, is added to it. T...

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  11. Draw lewis structure of H2S

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  12. Which of the following statements is not true?

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  13. Which of the following does not give oxygen on heating ?

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  14. Which of the following lanthanoid ions is diamagnetic ? (At. nos. Ce...

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  15. Reason of lanthanoid contraction is :

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  16. The reaction of acidified KMnO4 with H2O2 gives .

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  17. The pair of compounds that cannot exist together is :

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  18. Magnetic moment of 5.92 B.M. is given by which of the following ion ...

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  19. Gadolinium belong to 4 f series (Z=64). Which of the following is its ...

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  20. Because of lanthanoid contraction, which of the following pairs of ele...

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