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Use the data to answer the following and...

Use the data to answer the following and also justify giving rason: `{:(," "Cr," "Mn," "Fe," "Co),(E_(M^(2+)//M)^0,-0.91,-1.18,-0.44,-0.28),(E_(M^(3+)//M^(2+))^0,-0.41,+1.57,+0.77,+1.97):}`
( a) Which is a stronger redusing agent in aqueous medium `Cr^(2+) or Fe^(2+)` and why ?
( b) Which is the most stable ion in +2 oxidartion and why ?

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(i) `Mn^(2+)` is more stable than `Fe^(3+)`
(ii) The order of getitng oxidised is `Mn gt Cr gt Fe`.
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
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  2. E(Mn^(3+)//Mn^(2+))^@is highly positive than that of E(Cr^(3+)//Cr^(2+...

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  3. Use the data to answer the following and also justify giving rason: {:...

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  5. Why Ti^(+4) complex are diamagnetic?

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  6. A substance is found to have a magnetic moments of 3.9BM.How many unpa...

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  7. Explain giving reasons: (i) Transition metals and many of their compou...

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  8. Describe The general characteristics of transition elements with speci...

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  9. Which type of reaction MnO(4)^(2-)show with acid , dilute -alkali or w...

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  10. Why is KMnO4 kept in dark bottles ?

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  11. Why does AgNO(3) produced a black stain on the skin?

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  12. Why is AgBr used in photography ?

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  13. Why it is not advisable to dissolve KMnO(4) in cold and concentrated H...

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  14. What happen when: (a) Green Vitriol is strongly heated. , (b) FeSO(4)...

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  15. State true or false: Reaction of K(2)Cr(2)O(7) with cold and concentra...

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  16. Write balanced chemical equations for: (i) Mixture of K(2)Cr(2)O(7) ...

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  17. What are inner transition elements? Decide which of the following atom...

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  18. Actinoid contraction is greater from element to element than lanthanoi...

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  19. The chemistry of the actinoid elements is not so smooth as that of the...

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  20. Why Sm^(2+) , Eu^(2+) and Yb^(2+) ions are good reducing agents , but ...

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