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Which element in the first transition se...

Which element in the first transition series shows the maximum number of oxidation states ?

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Manganese
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U-LIKE SERIES-THE D-AND F-BLOCK ELEMENTS -VERY SHORT ANSWER QUESTIONS (1 mark each)
  1. The size of the trivalent cation in the lanthanoid series decreases st...

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  2. Why do most transition metal ions exhibit paramagnetism ?

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  3. Why does V(2)O(5) act as catalyst ?

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  4. Why do transition elements have high value of hydration enthalpy ?

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  5. Which trivalent cation is largest in lanthanoid series?

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  6. The electronic configuration of Co^(2+) and Cu^(2+) is d^(7) and d^(9)...

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  7. Why is bivalent Ti^(2+) ion paramagnetic in nature ?

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  8. Which of the following ions is paramagnetic ? Sc^(3+)(Z=21),Cu^(+)(Z...

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  9. Write outer electronic configuration of lanthanoids.

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  10. Name the first element of Group 3.

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  11. What is the general electronic configuration of the outer orbitals of ...

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  12. Which element in the first transition series shows the maximum number ...

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  13. Some substances are strongly attached by magnetic field. What do we ca...

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  14. What is the unit of magnetic moment ?

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  15. Which energy is lowered when we use a catalyst in a chemical reaction ...

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  16. Name a chemical which is used in leather industry and as an oxidant fo...

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  17. Which substance is fused with sodium carbonate in free excess of air t...

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  18. Out of sodium dichromate and potassium dichromate, which is more solub...

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  19. Which substance is fused with an alkali metal hydroxide and an oxidisi...

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  20. What is the name of the alloy obtained by the combination of 95% lanth...

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