MCQ
Acidity of diprotic acids in aqueous solutions increases in the order
- ✓$H_2S < H_2Se < H_2Te$
- B$H_2Se < H_2S < H_2Te$
- C$H_2Te < H_2S < H_2Se$
- D$H_2Se < H_2Te < H_2S$
It contains sulfur in its +6 oxidation state and a peroxide group.
The tetrathionate anion, $\mathrm{S}_{4} \mathrm{O}_{6}^{2-}$, is a sulphur oxoanion derived from the compound tetrathionic acid, $\mathrm{H}_{2} \mathrm{S}_{4} \mathrm{O}_{6}$.
Two of the sulphur atoms present in the ion are in oxidation state $\mathrm{O}$ and two are in oxidation state $+5 .$
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