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In the dichromate dianion...

In the dichromate dianion

A

4 Cro-O bonds are equivalent

B

all Cr-O bonds are equivalent

C

all Cr-O bonds are equivalent

D

6 Cr-O bonds are equivalent

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R G PUBLICATION-THE d-AND f-BLOCK ELEMENTS-EXERCISE
  1. The emitted colour of Ti^(4+) ion is

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  2. Which of the following metal does not form MO type oxide?

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  3. In the dichromate dianion

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  4. What are transition elements? Give the general electronic configuratio...

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  5. What are transition elements? Give the general electronic configuratio...

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  6. Give reasons: Why are Zn, Cd, and Hg normally not regarded as transiti...

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  7. Silver atom has complete filled d-orbitals (4d^(10)) in its ground sta...

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  8. Why third ionisation enthalpy of Mn is very high?

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  9. The variability of oxidation states of a transition element is differe...

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  10. Flourine is more electronegative than oxygen. Oxygen foms compound Mn2...

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  11. Between the couple Cr^(3+)//Cr^(2+) and Fe^(3+)//Fe^(2+) whose E value...

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  12. Give the reason for negative E^@ value for Ni^(2+)//Ni.

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  13. What is 'spin only' formula?

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  14. The observed magnetic moment of a transition melal ion is 5.96 BM. Cac...

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  15. Copper (I) and d^(10) configuration, while copper (II) has d^9 configu...

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  16. Draw the structure of Cr2O7^(2-) ion.

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  17. At room temperature why the reaction between oxalic acid and acidified...

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  18. Why La^(3+) ions are coloured?

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  19. Write the composition of mischmetal.

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  20. Write the composition of mischmetal.

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