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The colour of the transition metal ions ...

The colour of the transition metal ions is due to

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Transition metals normally have unfilled 'd' orbitals which are degenerate. The colour of transition metal ions is due to absorption of light in visible region. Which of the following transition is responsible for providing the colour?

The colour of transition metal ions is due to

The colour of the transition metal ions is//are due to:

The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Which of the following is paramagnetic as well as coloured ion?

The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Which is a coloured ion?

The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Select the correct statement:

DINESH PUBLICATION-D-AND -F BLOCK ELEMENTS-Question From Board Examination
  1. Why does Mn(III) undergo disproportionation reaction easily ?

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

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

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

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

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

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

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

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  9. Give reasons for the following : (i) Mn^(3+) is a good oxidising ag...

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  10. Predict which of the following will be coloured in aqueous solution ? ...

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  11. (a) Explain the structure of dichromate ion. (b) Why are cadmium sa...

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  12. COMPARISON OF LANTHANOIDS & ACTINOIDS

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  13. Explain the following : (i) Cu^(+) is colourless and Cu^(2+) is colo...

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  14. What do you mean by (a) Chromyl Chloride test (b) Actinoids?

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  15. Why do transition metals form coloured complexes ?

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  16. How would you prepare (i) K(2)MnO(4) and MnO(2)? (ii) Na(2)Cr(2)O(7...

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  17. Why is enthalpy of atomisation is the lowest for Zn in 3d series of tr...

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

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  19. Which of the following actinoids is well known to exhibit +2 oxidation...

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  20. Why do actinoid elements show wide range of oxidation states ?

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