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Write the composition of mischmetal....

Write the composition of mischmetal.

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R G PUBLICATION-THE d-AND f-BLOCK ELEMENTS-EXERCISE
  1. Why La^(3+) ions are coloured?

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  2. Write the composition of mischmetal.

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  3. Write the composition of mischmetal.

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  4. What are inner transition elements.

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  5. What are coinage metals.

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  6. Explain the folloiwng phenomenon: Transition metals are much harder th...

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  7. Actinoid contraction is greater from element to element than lanthanoi...

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  8. How will you prepare: K2MnO4 from MnO2?

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  9. How will you prepare: Na2Cr2O7 from Na2CrO4?

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  10. Account for the folloiwng: Mn^(2+) is more stable than Fe^(2+) towards...

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  11. Account for the folloiwng: The enthalpy of atomization is lowest for Z...

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  12. Account for the folloiwng: Actinoid elements show wide range of oxidat...

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  13. Explain the folloiwng facts: Among lanthanoids Ln(III)compound are pre...

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  14. The E(M^(2+)//M)^(Theta) for copper positive (+0.34V)It is only metal ...

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  15. Explain the folloiwng facts: The metallic radii of the 3rd (5d) series...

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  16. Explain briefly how +2 state becomes more and more stable in the first...

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  17. Write three general chracteristics of transition elements.

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  18. Discuss about the melting point of transition elements.

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  19. "In a given series of the transition elements the atomic size increase...

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  20. Account for the folloiwng: The enthalpy of atomization is lowest for Z...

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