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The number of unpaired electrons in Ni^(...

The number of unpaired electrons in `Ni^(2+)` is

A

Zero

B

2

C

4

D

8

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Ammonium dichromate is used in fireworks. The green coloured powder bl...

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

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  3. The number of unpaired electrons in Ni^(2+) is

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  4. The electronic configuration of terbium (IV) (At. No. 65) is

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  5. Which of the following statement is not correct ?

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  6. In the standardisation of Na2S2O3 using K2Cr2O7 by iodometry, the equi...

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  7. How many moles of electrons are required to reduce 1 mol of MnO4^- to ...

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  8. The basic character of the transition metal monoxides follows the orde...

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

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

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

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

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

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

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

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

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

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  18. Draw lewis structure of H2S

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  19. Which of the following statements is not true?

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

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