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Why Zn^(2+) salts are colourless and Ni...

Why `Zn^(2+)` salts are colourless and Ni2+ salts are coloured?

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Assertion : FeCl3 reacts with KCNS to give blood red colouration. Re...

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  2. Draw lewis dot structure of SO2

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  3. Why Zn^(2+) salts are colourless and Ni2+ salts are coloured?

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  4. Reason of lanthanoid contraction is :

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  5. Why the actinoids exhibit a large number of oxidation states than the ...

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  6. Draw lewis dot structure of F2O.

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  7. Complete the following:

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  8. Choose the correct option- Bronze alloy has the following composition-

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  9. The answer to each of the following questions is a single- digit -in...

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  10. The number of electrons present in the 4f-subshell of Gd (Z = 64) is

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  11. Draw lewis structure of NCl3

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  12. The number of paramagnetic ions among Ti^(3+), Cr^(3+), Ti^(4+), Fe^(2...

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  13. The magnetic moment of a transition metal ion is found to be 4.90 BM. ...

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  14. The oxidation number of Mn in the product of alkaline oxidative fusion...

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  15. In neutral or faintly alkaline solution, 8 moles of permanganate anion...

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  16. Electronic configuration of a transition element X in +3 oxidation s...

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  17. The electronic configuration of Cu (II) is 3d^9 whereas that of Cu (I)...

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  18. Metallic radii of some transition elements given below. Which of t...

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  19. Generally transition elements form coloured salts due to the presence ...

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  20. On addition of small amount of KMnO4 to concentrated H2SO4, a green oi...

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