Chemistry - Complete P-block Question with Solution | TestHub

$\mathrm{In}{\mathrm{SO}}_3^{--}$ $$\begin{array}{rl}& x+3(-2)=-2;x=+4\\ & \text{ In }{\mathrm{S}}_2{\mathrm{O}}_4^{--}\\ & 2x+4(-2)=-2\\ & 2x-8=-2\\ & 2x=6;x=+3\\ & \text{ In }{\mathrm{S}}_2{\mathrm{O}}_6^{2-}\\ & 2x+6(-2)=-2\\ & 2x=10;x=+5\end{array}$$ hence the correct order is $${\mathrm{S}}_2{\mathrm{O}}_4{}^{--}<{\mathrm{SO}}_3^{--}<{\mathrm{S}}_2{\mathrm{O}}_6{}^{--}$$