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(a) What is the cause of lanthanoid cont...

(a) What is the cause of lanthanoid contraction? Discuss. (b) What is Misch metal?

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MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-REVISION EXERCISES ( SHORT ANSWER QUESTION)
  1. (a) What is lanthanoid contraction? What is the cause of lanthanoid co...

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  2. (a) Write the electronic configuration of: (i) Co^(2+) (27) (ii) C...

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  3. (a) What is the cause of lanthanoid contraction? Discuss. (b) What is ...

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  4. When chromite ore FeCr(2)O(4) is fuse with NaOH in presence of air, a ...

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  5. Complete the following chemical equations : (i) 8MnO(4)^(-)+3S(2)O(3...

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  6. Give reason for the following : (i) Mn shows the highest oxidation s...

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  7. (a) Write the structure of Cr2O7^(2-) Give two uses of K2Cr2O7 . ...

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  8. (a) Explain the magnetic behaviour of transition metals. (b) Write...

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  9. Explain :(i) Variable oxidation states of d-block elements (ii) d-bloc...

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  10. (a) Define transition elements. (b) Give general electronic configurat...

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  11. Give reason. (a) Cerium (Ce) exhibits +4 oxidation state.(b) Actinoid ...

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  12. Write any three applications of d and f-block elements.

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  13. (i) Which of the following are coloured in aqueous solution ? Give rea...

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  14. (i) Explain why most of the Cu(I) compounds are unstable in aqueous so...

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  15. (i) What is the most common oxidation state of the actinoids? (ii) Why...

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  16. Zn^(2+) salt are white while Cu^(2+) salts are blue. Assign reason.

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  17. Calculate the number of unpaired electrons in Cr^(3+) and V^(3+) io...

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  18. How will you account for the following: (a) Actinoids exhibit more num...

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  19. (i) What are interstitial compounds ? (ii) Transition metals show good...

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  20. (a) Define transition metals. (b) Why do transition metals form colour...

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