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
    $H_2Se < H_2Te < H_2S$

Answer

Correct option: A.
$H_2S < H_2Se < H_2Te$
a
Peroxydisulfuric acid is the inorganic compound with the chemical formula $\mathrm{H}_{2} \mathrm{S}_{2} \mathrm{O}_{8}$.

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 $+5 .$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free