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Generally transition elements form colou...

Generally transition elements form coloured salts due to the presence of unpaired electrons, Which of the following compounds will be coloured in solid state ?

A

`Ag_2, SO_4`

B

`CuF_2`

C

`ZnF_2`

D

`Cu_2Cl_2`

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. The electronic configuration of Cu (II) is 3d^9 whereas that of Cu (I)...

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  2. Complete the following:

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

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

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  5. The magnetic nature of elements depends on the presence of unpaired el...

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  6. Which of following oxidation state is common for all lanthanide ?

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  7. Which of the following reactions are disproportionation reactions ? (...

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  8. The commercial name of calcium sulphate is-

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  9. There are 14 elements in actinoid series. Which of the following eleme...

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  10. The number of moles of KMnO4 that will be needed to react with one ...

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  11. Which of the following is amphoteric oxide? Mn2O7, CrO3, Cr2O3, CrO, V...

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  12. Gadolinium belongs to 4f series. It’s atomic number is 64. Which of th...

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  13. Interstitial compounds are formed when small atoms are trapped inside ...

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  14. The magnetic Moment is associated with its spin angular momentum and o...

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  15. How does KMnO4 act as a powerful oxidizing agent in neutral, alkaline ...

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  16. Which of the following statements is not correct ?

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  17. When acidified K2Cr2O7 solution is added to Sn^(2+) salts than Sn^(2+...

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  18. Fe shows an oxidation state of +1 in :

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  19. Why do elements in the same group have similar physical and chemical p...

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  20. Write one oxidising reaction of KMnO4 in basic medium.

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