# Which of the following oxo-acids of sulphur has more than one oxidation state of sulphur?

$\begin{array}{1 1}(A)H_2S_2O_3\\( B)H_2S_2O_4\\(C)H_2S_2O_6\\(D)H_2S_2O_8\end{array}$

Solution :
Thiosulphuric acid $(H_2S_2O_3)$ is
Answer : $H_2S_2O_3$
edited Sep 25, 2017 by meena.p