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Name a transition element which does not...

Name a transition element which does not exhibit variable oxidation states.

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Scandium (Z = 21) , having outermost electronic configuration `3d^(1) 4s^(2)` shows an oxidation state of + 3 only.
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -SOLVED NCERT TEXTBOOK PROBLEMS (NCERT INTEXT QUESTIONS)
  1. On what ground can you say that scandium (Z = 21) is a transition elem...

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  2. Why do the transition elements exhibit higher enthalpies of atomisatio...

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  3. Name a transition element which does not exhibit variable oxidation st...

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  4. Why is Cr^(2+) reducing and Mn^(3+) oxidising when both have d^(4) con...

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  5. How would you account for the increasing oxidising power in the series...

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  6. For the first row transition metals the E^(0) values are : |{:(E^(0)...

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  7. Why is the E^(0) value for the Mn^(3+)|Mn^(2+) couple much more positi...

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  8. Calculate the magnetic moment of a divalent ion in aqueoues solution i...

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  9. What is meant by 'disproportionation' of an oxidation state ? Give an ...

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  10. Name a member of the lanthanoid series which is well known to exhibit ...

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  11. Silver atom has completely filled d orbitals (4d^(10)) in its ground s...

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  12. In the series Sc (Z = 21) to Zn (Z = 30), enthalpy of atomisation of z...

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  13. Which of the 3d-series of the transition metals exhibits the largest n...

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  14. The E^(0)(M^(2+)|M) value for copper is positive (+0.34V). What is pos...

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  15. How would you account for the irregular variation of ionisation enthal...

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  16. Why is the highest oxidation state of a metal exhibited in its oxide o...

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  17. Which is a stronger reducing agent Cr^(2+) or Fe^(2+) & Why ?

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  18. Calculate the 'spin only' magnetic moment of M^(2+)(aq) ion (Z = 27).

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  19. Explain why Cu^(+) ion is not stable in aqueous solutions.

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  20. Actinoid contraction is greater from element to element than lanthanoi...

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