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The hybridisation of Cr in Cr2O7^(2-) io...

The hybridisation of Cr in `Cr_2O_7^(2-)` ion is

A

`sp^3 d`

B

`sp^3 d^2`

C

`sp^3`

D

`sp^2` .

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. In the reaction : CrO4^(2-) + X rarr Cr2O7^(2-), X is

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  2. In which of the following pairs, the atomic size is almost the same ?

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  3. The hybridisation of Cr in Cr2O7^(2-) ion is

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  4. In alkaline medium, equivalent weight of KMnO4 is ,

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  5. What is lanthanoid contraction ?

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  6. In acidic medium the equivalent weight of K2Cr2O7, is :

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  7. Ammonium dichromate is used in fireworks. The green coloured powder bl...

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

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  9. The number of unpaired electrons in Ni^(2+) is :

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  10. The electronic configuration of terbium (IV) (At. No. 65) is

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  11. Which of the following statement is not correct ?

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  12. In the standardisation of Na2S2O3 using K2Cr2O7 by iodometry, the equi...

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  13. Give-one reaction in each case to show that H(2)O(2) is an reducin...

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  14. The basic character of the transition metal monoxides follows the orde...

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  15. The correct order of ionic radii of Y^(3+), La^(3+), Eu^(3+) and Lu^(3...

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

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

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  18. Which one of the following ions will exhibit colour in aqueous solutio...

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  19. The correct order of decreasing second ionisation enthalpy of Ti (22),...

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  20. Transition elements exhibit a large number of oxidation states.Explain...

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