If ${\text{X}}_{\text{3}}{\text{Y}}_{\text{2}}\left(\text{i=5}\right)$ react with ${\text{A}}_{\text{2}}{\text{B}}_{\text{3}}\left(\text{i=5}\right)$ in aqueous solution it gives brown colour. When  ${\text{X}}_{\text{3}}{\text{Y}}_{\text{2}}{\text{ and A}}_{\text{2}}{\text{B}}_{\text{3}}$ are separated by a semi permeable membrane. Due to osmosis, there is