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Explain the following properties of tran...

Explain the following properties of transition elements.
(i) Variable oxidation states (ii) Complex formation

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PRADEEP-D- AND F-BLOCK ELEMENTS-ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS )
  1. Why do the transition elements exhibit higher enthalpies of atomisatio...

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

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  3. Explain the following properties of transition elements. (i) Variab...

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  4. Why do transition metals form coloured complexes ?

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  5. (a) Following are the transition metal ions of 3d series: Ti^(4+),V^...

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  6. Write down the formula of potassium dichromate.

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  7. When H(2)O(2) is added to a acidified solution of K(2)Cr(2)O(7):

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  8. Give equation forchromyl chloride test.

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  9. Name the gas evolved when concentrated HCI is added to powdered potass...

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  10. Write an equation in ionic form to represent the oxidizing actionof Cr...

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  11. Why Mn^(2+) compounds are more stable than Fe^(2+) compounds towards o...

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  12. Give the preparation of potassium permanganate from pyrolusite ore.

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  13. What happens when (i) KMnO(4) is heated (ii) K(2)Cr(2)O(7)is heated.

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  14. What happens when acidified KMnO(4)reacts with (i) H(2)S (ii)Oxalic ac...

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  15. Describe the oxidising property of KMnO(4) in neutral or faintly alkal...

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  16. What chemical changes take place when (i) MnO(2) is fused with KOH in ...

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  17. Write ionic equations for the conversion of (a)manganate to permanga...

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  18. Write chemical equations for the following reactions: (a) Oxidatio...

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

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  20. What is meant by disproporitonation of an oxidation state? Give an exa...

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