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Write the ionic equation representing th...

Write the ionic equation representing the oxidising property of acidified KMnO4 solution.

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`MnO_(4)^(-)+5e^(-)+8H^(+)to Mn^(2+)+4H_(2)O`.
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U-LIKE SERIES-THE D-AND F-BLOCK ELEMENTS -VERY SHORT ANSWER QUESTIONS (1 mark each)
  1. Why are Zn, Cd and Hg normally not regarded as transition elements ?

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  2. Which is the most stable oxidation state of Ti (Z = 22) in aqueous sol...

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  3. Write the ionic equation representing the oxidising property of acidif...

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  4. Why are compounds of transition metals, generally coloured ?

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  5. The size of the trivalent cation in the lanthanoid series decreases st...

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  6. Why do most transition metal ions exhibit paramagnetism ?

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

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

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  9. Which trivalent cation is largest in lanthanoid series?

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

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

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

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  13. Write outer electronic configuration of lanthanoids.

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  14. Name the first element of Group 3.

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

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

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

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  18. What is the unit of magnetic moment ?

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

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

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