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4.) Compare molecular structure and oxidizing power of sulfuric acid, selenic acid, and telluric acid.
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Answer #1

HO-Se-OH OH Te selenic acid sulfuric acid telluric acidAs given above, the structure of three acids.

The oxiding power of any acis is dependent upon the stability of oxidation state of any acid. Since all the central elements i.e. Se/S/Te are in +6 oxidation state, all are expected to be good oxidising agents.

Moreover, the stability of high oxidation state increases down the group and hence it can be predicted that +6 oxidation state of Te is more stable than +6 oxidation state of S. Thus, H2SO4 will have very high oxiding power as compard to H6TeO6 which is weak acid and oxidising agent. The oxidising power of selenic acid is in between sulphuric and telluric acid. Thus increasing order of oxidising power of these acids is:

H6Te6 < H2SeO4 < H2SO4

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4.) Compare molecular structure and oxidizing power of sulfuric acid, selenic acid, and telluric acid.
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