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Mark the correct statement(s). (1) Manga...

Mark the correct statement(s). (1) Manganese exhibits +7 oxidation state (2) Zinc forms coloured ions (3) `[CoF_6]^(3-)` is diamagnetic (4) Sc forms +4 oxidation state (5) Zn exhibits only +2 oxidation state

A

1 and 2

B

1 and 5

C

2 and 4

D

3 and 4

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. The colour of KMnO4 is due to

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  2. MnO4^(-) ions are reduced in acidic condition to Mn^(2+) ions whereas ...

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  3. Mark the correct statement(s). (1) Manganese exhibits +7 oxidation sta...

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  4. The maximum oxidation state exhibited by actinide ions is

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  5. KMnO4 gets reduced to

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  6. All Cu (II) halides are known except the iodide. The reason for is tha...

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  7. The transition metal ion that has ‘spin-only’' magnetic moment value o...

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  8. Write a short note on chromyl chloride test.

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  9. The bonds present in the structure of dichromate ion are

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  10. When H2O2 is shaken with an acidified solution of K2Cr2O7 in presence ...

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  11. The reddish brown vapours formed when sodium chloride is heated with K...

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  12. How would you account for the increasing oxidising power in the series...

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  13. An orange solid A on heating gives a colourless gas B. The gas B in dr...

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  14. In neutral or faintly alkaline medium, thiosulphate is quantitatively ...

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  15. Which of the following ions has the same number of unpaired electrons ...

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  16. Among the following actinoid pairs, the maximum oxidation states is sh...

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  17. The atomic number of cerium (Ce) is 58. The correct electronic configu...

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  18. The only radioactive element among the lanthanoids is

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  19. Identify a ‘Chemical twin' among the following

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  20. How many grams of potassium dichromate are required to oxidise 20.0 g ...

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