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What are the different oxidation states ...

What are the different oxidation states exhibited by the lanthanoids?

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The principal oxidation state of lanthanoids is + 3. In addition, they exhibit oxidation states of + 2 and + 4.
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MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-NCERT FILE (TEXTBOOK EXERCISE)
  1. What are the characteristics of th transition elements and why are the...

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  2. In What way is the electronic configuration of the transition elements...

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  3. What are the different oxidation states exhibited by the lanthanoids?

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  4. Explain giving reason: (a) Transition metals and many of their compo...

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  5. What are interstitial compounds? Why are such compounds well known for...

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  6. How is the variability in oxidation states fo transition metals differ...

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  7. Describe the preparation of potassium dichromate from iron chromite or...

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  8. Describe the oxidising action of potassium dichromate and write the io...

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  9. Describe the preparation of potassium permanganate. How does the acidi...

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  10. For M^(2+)//M and M^(3+)//M^(2+) systems the E^(ϴ) values for some met...

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  11. Predict which of the followingwill be coloured in aqueous solution? T...

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  12. Compare the stability of +2 oxidation state for the elements of the fi...

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  13. Compare lanthanoids and actinoids with reference to : (i) the electr...

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  14. How would you account for the following: A) Of the d^(4) species Cr^(...

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  15. What is meant by 'disproportionation'? Give two examples of disproport...

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  16. Which metal in the first series of transition metals exhibits+1 oxidat...

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  17. Calculate the number of unpaired electrons in the following gaseous io...

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  18. Give examples and suggest reasons for the following features of the t...

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  19. Indicate the steps in the preparation of: (i). K2Cr2O7 from chromite...

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  20. What are alloys? Name an important alloy which contains some of the la...

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