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Which of the following elements shows ma...

Which of the following elements shows maximum number of different oxidation states in its compounds ?

A

Eu

B

La

C

Gd

D

Am

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  4. Which of the following is not an actinoid ?

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  7. The reason for greater range of oxidation state in actinoids is attrib...

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  8. Reason of lanthanoid contraction is

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  9. Which one of the following statements related to lanthanons is incorre...

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  10. All Cu(II) halides are known except the iodide. The reason for it is t...

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  11. In nitroprusside ion, the iron and NO exist as Fe(II) and NO^(+) rathe...

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  12. A red solid is insoluble in water. However, it becomes soluble if some...

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  13. [Fe(H(2)O)(5)NO]^(2+) is a complex formed during the brown ring test f...

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  14. WhenHg(2)Cl(2) ionizes, the ins produced and the unpaired electrons pr...

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  15. Prussian blue is -

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  16. Which one of the following reactions involves disproportionation ?

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  17. Pick out the correct statements from the following 1. Cobalt (III) ...

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  18. Which out of the following belong to 3d-series?

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  19. Transition elements have greater tendency to form complexes because

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  20. The colour of the transition metal ions is due to

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