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Out of Cu^+ and V^+2 which will be colou...

Out of `Cu^+` and `V^+2` which will be coloured and why ? (Atomic number Of V is 23 and Cu is 29).

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Express 2135 in roman numbers.

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  2. Why transition element show coloured Ions ? Explain.

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  3. Out of Cu^+ and V^+2 which will be coloured and why ? (Atomic number O...

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  4. Why +3 oxidation state of Fe (Z = 26) is more stable than its +2 oxida...

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  5. Is Au (Z = 79) a transition metal or not ? Explain.

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  6. Transition metals formlarge number of complex compounds.Explain.

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  7. Express 2137 in roman numbers.

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  8. Why the actinoids exhibit a large number of oxidation states than the ...

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  9. Transition elements and their compounds are found to be good catalysts...

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  10. Complete the following chemical equation : Cr2O7^(2-) (aq)+ H2S (g)+ H...

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  11. Complete the following chemical equation : Cu^(2+) (aq) + I^(-) (aq) ...

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  12. How would you account for the following ? The oxidising power of oxoan...

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  13. How would you account for the following ? The third ionization enthalp...

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  14. How would you account for the following ? Cr^(2+) is stronger reducing...

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  15. Complete the following chemical equation : MnO4^(-)(aq) + S2O3^(2-)(aq...

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  16. Complete the following chemical equation : Cr2O7^(2-) (aq)+ Fe^(2+) (a...

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  17. Explain the following observation : La^(3+) (Z =57) and Lu^(3+) (Z = 7...

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  18. Explain the following observation : Among the divalent cations in the ...

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  19. Explain the following observation : Cu^+ ion is not known in aqueous s...

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  20. Give reason for the following : Mn^(3+) is a good oxidising agent.

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