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Hydrated copper sulphate, is blue while ...

Hydrated copper sulphate, is blue while anhy drous copper sulphate is colourless, Why?

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In hydrated copper sulphate. four water mol. ecules are present us ligands, In the presence of ligands d-orbitals become non-degenerate. Hence d-d transition is possible by absotbing red wavelength. The complementary colour blue is reflected. In anhydrous .(CuSO)_(4)., no ligands. Hence d-orbitals are degenerated No d-d transition can occur. Hence anhydrous .(CuSO)_(4). is colourless.
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V PUBLICATION-THE d- AND f- BLOCK ELEMENTS-QUESTION BANK
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  2. Explain a. The lowest oxide of a transition metal(Cr,Z=24) is basic wh...

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  3. Hydrated copper sulphate, is blue while anhy drous copper sulphate is ...

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  4. An aqueous blue coloured solution of a transition metal sulphate react...

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  5. Give ionic equations for the oxidation of iodides with KMnO(4) in acid...

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  6. Write ionic equation for the reduction of MnO(4)^(-) to Mn^(2+) by H(2...

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  7. Can lanthanum '(z)=57)' exhibit '+4', oxidation state. Explain?

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  8. Give complete chemical equations for reaction between concentrated HC...

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  9. Explain why (a) '(Ce4+' is a good oxidistng agent whereas '(Sm2+ is a ...

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  10. Explain why the E^(0) value for the (Mn)^(3+) / (Mn)^(2+) couple is mu...

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  11. Complete the table suitably.

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  12. Transition elements show variable oxidation state. a) Do you agree wit...

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  13. Some information regardirg a particular, compound is given below. i) A...

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  14. Write the general outer electronic configuration of d-block elements.

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  15. What is a transition elements?

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  16. Transition elements are

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  17. The first transition element is

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  18. Cr has electronic configuration

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  19. In the first transition series, the highest oxidation state is exhibit...

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  20. Transition elements are colorured

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