500 mL of 1.2 M KI solution is mixed with 500 mL of 0.2 M KMnO_4 solution in basic medium. The liberated iodine was titrated with standard 0.1 M Na_2…

$\displaystyle 500$ mL of $\displaystyle 1.2$ M KI solution is mixed with $\displaystyle 500$ mL of $\displaystyle 0.2 \mathrm{M} \mathrm{KMnO}_4$ solution in basic medium. The liberated iodine was titrated with standard $\displaystyle 0.1 \mathrm{M} \mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_3$ solution in the presence of starch indicator till the blue color disappeared. The volume (in L ) of $\displaystyle \mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_3$ consumed is $\displaystyle \_\_\_\_$. (Nearest integer)