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Why Zn^2+ salts are white while Ni^2+ an...

Why `Zn^2+` salts are white while `N_i^2+` and `Cu^2+` salts are coloured ?

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SHARAM PUBLICATION-D AND F BLOCK ELEMENTS-EXERCISE
  1. Why do transitional elements form complex compounds ?

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  2. Why are the salts of Zn, Cd and Hg are colourless.

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  3. Why Fe^2+ forms Fe^3+, but Mn^2+ does not form Mn^3+

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  4. Why do transition metal ions have high enthalpy of hydration ?

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  5. Why the properties of third transition series are very similar to seco...

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  6. How would you account for the fact that the transition metals and thei...

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  7. Scandium forms no coloured ions, yet it is regarded as a transition el...

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  8. The paramagnetic character in 3d- transition series increases up to ma...

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  9. Explain why Zn shows only +2 oxidation state ?

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  10. Manganese exhibits highest oxidation state of +7. Give reason.

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  11. Explain, why Cu^+ ion is not stable in aqueous solution.

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  12. Why does copper not displace hydrogen from acids ?

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  13. Reactivity of transition elements decreases almost regularly from Sc t...

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  14. An ion has three unpaired electrons . Calculate its magnetic moment.

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  15. Explain, why Cu^+ ion is not stable in aqueous solution.

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  16. Predict which of the following will be coloured In aqueous solution gi...

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  17. Why Zn^2+ salts are white while Ni^2+ and Cu^2+ salts are coloured ?

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  18. What is the basic difference between the electronic configuration of t...

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  19. Which element of first transition series has highest second ionization...

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  20. Discuss the general characteristics properties of transition elements.

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