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Transition element act as good catalysts...

Transition element act as good catalysts because

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Transition elements act as catalyst because-

Transition elements are used as catalyst because :

(a) Transition metals can act as catalysts because these can change their oxidation state. How does Fe (III) catalyse the reaction between iodide and persulphate ions? (b) Mention any three processes where transition metals act as catalysts.

Generally transition metals act as catalyst because of

(a) Why do transition metals act as good catalysts? (b) Why do transition metals form alloys ? (c) What are coinage metals ?

Give reasons for the following: i. Transition elements act as catalysts ii. It is difficult to obtain oxidation state greater than two for Copper. iii. CrO is basic but Cr_(2)O_(3) is amphoteric.

DINESH PUBLICATION-D-AND -F BLOCK ELEMENTS-Question From Board Examination
  1. Among the divalent cations in the first transition series, manganese e...

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  2. La^(3+)(Z=57) and Lu^(3+)(Z=71) do not show any colour in solution. As...

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  3. Transition element act as good catalysts because

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  4. The atomic radii of the metals of the third (5d) series of transitions...

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  5. Explain why zinc is not rgardede as a transition element.

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  6. Explain why is Ce^(4+) ion a strong oxidising agent ?

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

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  8. Assing the reason for the following : (i) Transition metals generall...

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  9. In the transition series of metals, the metal which exhibits the great...

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  10. Metal-Metal bondin is more extensive in the 4d and 5d series of transi...

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  11. Why does Mn(III) undergo disproportionation reaction easily ?

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  12. How would you account for the following ? (i) Many of the transition...

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  13. The colour of the transition metal ions is due to

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  14. Why is the highest oxidation state of a metal exhibited in its oxide o...

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  15. K(2)Cr(2)O(7) is a good oxidising agent in acidic medium. Explain.

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  16. Why is potssium permanganate thermally unstable at 513 K.

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  17. The inter convertibility of chromate ion and dichromate ion in aqueous...

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  18. Complete the following equation : CrO(4)^(2-)+H^(+) to

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  19. Give reasons for the following : (i) Mn^(3+) is a good oxidising ag...

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  20. Predict which of the following will be coloured in aqueous solution ? ...

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