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Why nobelium is the only actinoid with +...

Why nobelium is the only actinoid with +2 oxidation state?

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CHETANA PUBLICATION-Transition and Inner Transition Elements-EXERCISE
  1. Why nobelium is the only actinoid with +2 oxidation state?

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  2. Which one of the following is dimagnetic Cr2+ Fe3+ Cu2+ Sc3+

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  3. Most stable oxidation state of Titanium is

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  4. Components of Nichrome alloy are

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  5. Most stable oxidation state of Ruthenium is

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  6. Stable oxidation states for chromiom are

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  7. Electronic configuration of Cu and Cu^(+1)

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  8. Which of the following have d^0s^0 configuration Sc3+,Ti4+,V5+

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  9. Magnetic moment of a metal complex is 5.9 B.M. timber of unpaired elec...

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  10. In which of the following series all the elements are radioactive in n...

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  11. Which of the following sets of ions contain only paramagnetic ions

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  12. Which actinoid, other than uranium, occur in significant amount natura...

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  13. The flux added during extraction of Iron from heamatite are its? Silic...

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  14. Which of the following exhibits the largest number of oxidation states...

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  15. Which of the following has all of its electrons paired?Cr2+,Mn2+,Cu1+,...

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  16. Which of the following has the highest I.E.?Ti,Mn,Fe,Ni

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  17. Which of the following has largest atomic radius?Mn,Cr,Ti,Co

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  18. Which of the following has the lowest melting point?V,Cr,Fe,Mn

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  19. Which of the following has the highest magnetic moment?

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  20. The electronic configuration of copper is

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  21. Which of the following ions does not give coloured solution?

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