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Name the transition element which does n...

Name the transition element which does not exhibit variable oxidation states .

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Scandium (Z = 21) does not exhibit variable oxidation states.
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(a) Define transition elements. Give the general electronic configuration of the transition elements. (b) (i) Name a transition element which does not exhibit variable oxidation state. (ii) Which of the 3d series of transition metals exhibit the largest number of oxidation states? (iii) Give reason why HCl is not used to acidify KMnO_4 solution in volumetric determination of Fe^(2+)

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Name the following: (a) A transition metal which does not exhibit variation in oxidation state in its compounds. (b) A compound where the transition metal is the +7 oxidation state. (c) A member of the lanthanoid series which is well known to exhibit +4 oxidation state. (d) Ore used in the preparation of Potassium dichromate.

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MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-CONCEPTUAL QUESTION
  1. The melting and boiling points of Zn, Cd and Hg are low. Why?

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  2. What may be the stable oxidation state of the transition element with ...

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  3. Name the transition element which does not exhibit variable oxidation ...

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  4. Fe^(3+) compounds are more stable than Fe^(2+) compounds because

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  5. How would you account for the increasing oxidising power in the series...

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  6. On the basis of the standard electroe potential values stated for acid...

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  7. Chromium is a typical hard metal while mercury is a liquid.

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  8. Silver is a transition metal but zinc is not.

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  9. The magnetic moments of few transition metal ions are given below : ...

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  10. (i) On the basis of the standard electrode potential values stated for...

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  11. (a) Why do transition elements show variable oxidation states? (i) N...

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  12. When MnO2 is fused with KOH in the presence of KNO3 as an oxidising a...

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  13. (a) Write a metal oxide compound for manganese in each of the followin...

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  14. How many water molecules are involved in coordination in CuSO4 .5H2O ...

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  15. Work out the following using chemical equation. In moist air, copper...

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  16. What is the most common form of chromium in basic solution ? What ion ...

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  17. Explain how the colour of K2Cr2O7 solution depends on pH of the solut...

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  18. Name the oxometal anions of the first series of the transition metals ...

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  19. Complete the following reactions : (i) Cr(2)O(7)^(2-)+Sn^(2+)+H^(+) ...

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  20. Sodium chloride when heated with conc. H(2)SO(4) and solid potassium d...

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