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Why does V(2)O(5) act as a catalyst ?...

Why does `V_(2)O_(5)` act as a catalyst ?

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Due to variable of vandium
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -EXERCISE (VERY SHORT ANSWER-TYPE QUESTIONS)
  1. Which among Fe^(2+) & Fe^(3+) salts have higher magnetic moment ?

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  2. Determine whether Ti^(4+) ion is diamagnetic or paramagnetic.

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  3. Why does V(2)O(5) act as a catalyst ?

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  4. Name the transition element which does not exhibit a variable oxidatio...

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  5. Why does cerium exhibit + 4 oxidation state ?

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  6. Why can't copper replace H(2) from an acid solution ?

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  7. Which is a stronger reducing agent among Cr^(2+) and Fe^(2+) ?

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  8. Why is d^(1) configuration of transition elements highly unstable ?

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  9. Why is the value of E(Cu^(2+)|Cu)^(0)(+0.34V) positive ?

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  10. Standard reduction potential (E^(0)) of Mn^(3+)|Mn^(2+) system is high...

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  11. Why does Mn^(2+) exhibit the highest paramagnetism among the bivalent ...

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  12. What do you obtain if MnO(2) is fused with solid KOH in air ?

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  13. What is the higher oxidation state exhibited by actinoids ?

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  14. Why are Eu^(2+) and Yb^(2+) highly stable ?

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  15. How many unpaired electrons are there in Gd(Z = 64) atom ?

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  16. What is the structure of manganate ion ?

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  17. What is the common oxidation state of the lanthanoids ?

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  18. Why do transition metals have high atomisation energy ?

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  19. Why do transition elements exhibit variable oxidation states ?

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  20. In volumetric analysis, why is K(2)Cr(2)O(7) used to prepare the stand...

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