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Fe^(3+) is more stable than Fe^(2+) . Ex...

`Fe^(3+)` is more stable than `Fe^(2+)` . Explain.

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Zn and Cd are not normally considered as transition metals. Why ?

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  2. Why Zr and Hf exhibit similar properties ?

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  3. Fe^(3+) is more stable than Fe^(2+) . Explain.

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  4. Explain :Transition elements exhibit variable oxidation states.

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  5. Express 1036 in roman numbers.

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  6. Complete the following chemical equation : KMnO4 overset (513K) rarr

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  7. Complete the following chemical equation : MnO2+ KOH + O2 rarr

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  8. Does actinoids show actinoid contraction similar to lanthanoid contrac...

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  9. Transition metals form mostly coloured compounds.Explain.

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  10. Complete the following chemical equation : MnO4^(-)+ NO2^(-)+ H^(+) ra...

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  11. Give the preparation of Potassium Permanganate from Pyrolusite ore.

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  12. Explain how the colour of a solution of K2Cr2O7 depends on the pH of t...

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  13. Explain, giving reasons, which one of the following pairs exhibits the...

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  14. Explain, giving reasons, which one of the following pairs exhibits the...

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  15. Give one method of Preparation of K2Cr2O7 from sodium chromate.

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  16. Why is Cu considered to be a transition element and Zn not ?

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

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  18. State what happens when a solid mixture of KCl and K2Cr2O7 is heated w...

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  19. Name the element showing maximum number of oxidation states among the ...

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  20. Explain the following observation giving an appropriate reason : Mn^(2...

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