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Among the divalent cations in the first transition series, manganese exhibits maximum paramagnetic character. Explain.

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`Mn^(2+)` ion has `3d^(5)` conifguration and has a maximum of five unpaired electrons . Therefore, it exhibits maximum paramagnetic character among athe divalent cations of first transition series.
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Which has maximum paramagnetic character ?

(a) Complete the following chemical equations : (i) MnO_(4)^(-) (aq) + S_(2)O_(3)^(2-) (aq) + H_(2)O(l) to (ii) Cr_(2)O_(7)^(2-)(aq)+Fe^(2+) (aq) + H^(+) (aq) to (b) Explain the following observatons : (i) La^(3+) (Z = 57) and Lu^(3+) (Z = 71) do not show any colour in solutions. (ii) Among the divalent cations in the first series of transition elements, manganese exhibits the maximum paramagnetism. (iii) Cu^(+) ion is not known in aqueous solutions.

Maximum paramagnetic character would be shown by

First transitional series is present in

Manganese exhibits maximum oxidation state in:

How many elements are present in the first transition series ?

Which one of the following shows maximum paramagnetic character

DINESH PUBLICATION-D-AND -F BLOCK ELEMENTS-Question From Board Examination
  1. Complete the following : (i) Cr(2)O(7)^(2-)(aq)+H(2)S(g)+H^(+)(aq) t...

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  2. Which is a stronger reducing agent Cr^(2+) or Fe^(2+) and why?

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  3. Among the divalent cations in the first transition series, manganese e...

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  4. La^(3+)(Z=57) and Lu^(3+)(Z=71) do not show any colour in solution. As...

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  5. Transition element act as good catalysts because

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  6. The atomic radii of the metals of the third (5d) series of transitions...

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  7. Explain why zinc is not rgardede as a transition element.

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  8. Explain why is Ce^(4+) ion a strong oxidising agent ?

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  9. Describe the oxidising property of KMnO(4) in neutral or faintly alkal...

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  10. Assing the reason for the following : (i) Transition metals generall...

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  11. In the transition series of metals, the metal which exhibits the great...

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  12. Metal-Metal bondin is more extensive in the 4d and 5d series of transi...

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  13. Why does Mn(III) undergo disproportionation reaction easily ?

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  14. How would you account for the following ? (i) Many of the transition...

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

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

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  17. K(2)Cr(2)O(7) is a good oxidising agent in acidic medium. Explain.

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  18. Why is potssium permanganate thermally unstable at 513 K.

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  19. The inter convertibility of chromate ion and dichromate ion in aqueous...

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  20. Complete the following equation : CrO(4)^(2-)+H^(+) to

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