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Give example of an element considered to...

Give example of an element considered to be a transition element having completely filled 4d - orbital.

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Outer electronic configuration of `Ag : [Kr]4d^(10)5s^(1)`.
Electronic configuration of `Ag^(2+): [Kr]4d^(9)5s^(0)`.
In its + 2 oxidation state, silver forms `AgO, AgF_(2)`, etc., which are stable compounds and they have partially filled 4d - orbitals. Hence, silver is considered as a transition element.
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS
  1. The colour of the complex of d - block elements depends on the nature ...

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  2. +2 oxidation state of manganese and zinc is very stable. Explain.

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  3. Give example of an element considered to be a transition element havin...

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  4. Can lanthanum (Z = 57) exhibit + 4 oxidation state ?

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  5. Ce^(3+) can easily get oxidised to Ce^(4+). Give reason.

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  6. Why does V(2)O(5) act as a catalyst ?

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  7. If CO(2) is passed through a green aqueous solution of potassium manga...

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  8. Cu(2)S is black and Cu(2)O is red through Cu^(+) has no unpaired elect...

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  9. Why does copper dissolve in ammonia solution ?

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  10. Mercurous ion exists as Hg(2)^(2+). Explain.

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  11. Cu^(+) salts are colourless but Cu^(2+) salts are coloured. Give reaso...

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  12. Which of the following can be considered to be a transition element - ...

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  13. Ti^(3+), V^(3+), Mn^(2+), Fe^(3+), Co^(2+) form coloured aqueous solut...

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  14. Why do gadolinium (Gd, Z = 64) and lutetium (Lu, Z = 91) have very hig...

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  15. Which element has the lowest atomisation energy in 3d - series ? Expla...

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  16. Stability of Fe^(3+) ion is greater than Mn^(3+) ion but less than Cr^...

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  17. Fe has a much lower tendency to get oxidised than Mn and Cr - explain....

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  18. Scandium is considered to be a transition element though it does not f...

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  19. Why do the transition elements of the 5d - series have much higher ion...

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  20. Fluorine is more electronegative than oxygen. Yet the highest oxidatio...

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