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Which of the following ion is colourless...

Which of the following ion is colourless in aqueous solution ?

A

`Fe^2+`

B

`Mn^2+`

C

`Ti^3+`

D

`Sc^3+`

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SHARAM PUBLICATION-D AND F BLOCK ELEMENTS-EXERCISE
  1. Which of the following is not a transition element ?

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  2. Formation of intertitial compounds make the transition metal :

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  3. Which of the following ion is colourless in aqueous solution ?

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  4. Which of the following statement about transition elements is correct ...

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  5. Permanent magnets are generaly made of alloys of :

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  6. In which of the following pairs, both the ions are coloured in aqueous...

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  7. The main reason for the large number of oxidation states exhibited by ...

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  8. Among the following out electronic configuration of atoms the highest ...

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  9. A reduction in atomic size with increase in atomic number is a charact...

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  10. The magnetic character of transition elements of its ion is due to

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  11. Which of the following transition metals show the maximum oxidation st...

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  12. Among the following series of transition metal ions the one where all ...

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  13. Which of the following d- block elements has half filled penultimate d...

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  14. The catalyst used for olefin polymerisation is

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  15. The malleability and ductility of metals can be accounted due to

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  16. Write down the electronic configuration of gadolinium (Gd). Its atom...

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  17. Which of the following ions is most stable in aqueous solution ?

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  18. For the four successive transition elements (Cr, Mn, Fe and Co), the s...

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  19. Write the electronic configuration Nickel.

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  20. Why are most of the transition metal compounds are paramagnetic ?

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