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Scandium (Z=21) shows oxidation states o...

Scandium `(Z=21)` shows oxidation states of +1 and
+3.

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JMD PUBLICATION-d-And f-BLOCK ELEMENTS-Example
  1. Zn, Cd, Hg are sometimes not considered as transition elements. Commen...

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  2. Out of Fe^(2+) and Fe^(3+),Fe^(3+) has more number of unpaired electro...

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  3. Scandium (Z=21) shows oxidation states of +1 and +3.

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  4. Mn (Atomic No.25) metal is with maximum paramagnetic character. Explai...

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  5. In aqueous solutions Cu^+ is less stable than Cu^(2+)

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  6. in 3d-series,zinc (Z=30) has highest enthalpy of atomisation.

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  7. In 3d-series,manganese shows maximum number of oxidation states.

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  8. As Oxidation state of a transition metal increases,the base character ...

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  9. ZnO turns yellow on heating. Why?

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  10. The O.S. of manganese in KMnO4is +7

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  11. What are transition elements ? Which of the d block elements are not r...

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  12. What are transition elements ? Which of the d block elements are not r...

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  13. Give the general electronic configuration of d-block elements.

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  14. Scandium (z = 21) is a transition element but zinc (z = 30) is not. Ex...

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  15. Sliver atom has completely filled d-orbitals (4d^10) in its ground sta...

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  16. Zn salts are white, Ni^(++) salts are blue explain

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  17. Account for : Zn^(2+) salts are white while Cu^(2+) salts are blue.

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  18. Out of Fe^(2+) and Fe^(3+) which is more paramagnetic and why ?

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  19. Why Cd^(2+) salts are white ? Cd=48

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  20. Which of the two is paramagnetic V(IV) or V(V) and why ?

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