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Name the first and last element in the s...

Name the first and last element in the second transition series.

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Name the first and last elements of Actinides.

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Name two transition elements.

Define transition elements. Name the different transition series.

Define transition elements. Give the names and symbols of the metals of the first transition series.

Compare the stability of + 2 oxidation state of the elements of the first transition series.

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NCERT TELUGU-D-BlOCK ELEMENTS-SELF EVALUATION (ANSWER IN ONE OR TWO SENTENCES)
  1. Explain why d-block elements exhibit variable oxidation states?

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  2. Transition elements form complexes due to

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  3. Why does Mn(II) show maximum paramagnetic character among the bivalent...

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  4. Why Zn^(2+) salts are white while Ni^(2+) salts are coloured?

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  5. [Ti(H(2)O)(6)]^(3+) is coloured while [Sc(H(2)O)(6)]^(3+) is colourles...

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  6. A substance is found to have a magnetic moment of 3.9 BM. How many unp...

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  7. Explain why the melting and boiling points of Zn, Cd, Hg are low?

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  8. Explain why Mn^(2+) is more stable than Mn^(3+)?

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  9. Write two alloys of copper and their uses.

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  10. Write short notes on alumino thermic process?

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  11. Name the first and last element in the second transition series.

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  12. Name the lightest and the heaviest elements (in terms of density) amon...

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  13. Which of the following ions would form colourless complexes? Cu^(2+)...

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  14. What happens when KI solution is added to an aqueous solution of coppe...

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  15. What happens if the copper sulphate crystals taken into dry test tube ...

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  16. Discuss the extraction of copper from copper pyrites.

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  17. Name the ores of gold. Explain how it is extracted from its alluvial g...

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  18. List the ores of silver. How silver is extracted from Argentite?

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  19. Explain the extraction of Zinc form Zinc blende.

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  20. Explain how dichromate is extracted from its chromite are. Write the b...

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