Question

In neutral or faintly alkaline solution, 8 moles of permanganate anion quantitatively oxidize thiosulphate anions to produce X moles of a sulphur containing product. The magnitude of X is

Answer 1

$3S_2{O}_3^{–}+8Mn{O}_4^{–}\to 6S{O}_4^{2–}+8Mn{O}_2$

$\therefore 8$ moles of $Mn{O}_4^{–}$ form $6$ moles of $S{O}_4^{2–}$