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Which of the following is correct ? (1) ...

Which of the following is correct ? (1) ΔH1 of group 12 is Zn>Cd>Hg (2) V205 is amphoteric,exist as VO4^3- in acidic medium (3)K2[PtCl6] is thermodynamically unstable (4)In the d-block , I.E, is lowest for La and highest for Hg

A

`Delta_(i)H_(1)` for group 12 is `Zn gt Cd gt Hg`

B

`V_(2)O_(5)` is amphoteric , exist as `VO_(4)^(3-)` in acid medium

C

`K_(2)[PtCl_(6)]` is thermodynamically unstable

D

In the d-block , I.E, is lowest for La and highest for Hg

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BRILLIANT PUBLICATION-D & F BLOCK ELEMENTS-Level -II
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  9. {:("Element":,Fe,Co,Ni,Cu),("Metallic radii":,126,125,125,128):} Whi...

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  10. A pair of amphoteric oxides are

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  13. Which of the following statement is incorrect ?

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  15. Which of the following is incorrect ?

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  16. Which is wrong w.r.t. K(2)Cr(2)O(7) ?

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  17. Which is not related to the reactions of K(2)Cr(2)O(7) ?

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  18. In the dichromate ion, correct statement is

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  19. Which is false regarding KMnO(4) ?

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