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The bonds present in the structure of di...

The bonds present in the structure of dichromate ion are

A

four equivalent Cr - O bonds only

B

Six equivalent Cr -O bonds are one O - O bond

C

six equivalent Cr - O bonds and one Cr - Cr bond

D

six equivalent Cr -O bonds and one Cr - O - Cr bond

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. The transition metal ion that has ‘spin-only’' magnetic moment value o...

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  2. Write a short note on chromyl chloride test.

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

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

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

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

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

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

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

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

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

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  12. The only radioactive element among the lanthanoids is

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  13. Identify a ‘Chemical twin' among the following

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

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  15. Which of the following statement regarding lanthanides is false?

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  16. How is sodium chromate converted into sodium dichromate, in the manufa...

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  17. Identify the metal that forms colourless compounds.

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  18. What is the general molecular formula of the products obtained on heat...

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  19. Choose the wrong statement in the following:

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  20. In aqueous solution, Cr^(2+) is stronger reducing agent than Fe^(2+). ...

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