There are 2 solutions of Iron II Sulfate, both being of different concentratons. The solutions are labeled B and C.
25cm3 of B is poured into testtube labeled B and 25cm3 of C is poured into testtube labeled C.
It takes 13cm3 of Potassium Manganate to colourize 25cm3 of B.
It takes 39cm3 of Potassium Manganate to colouroze 25cm3 of C.


Which soluion of Iron Sulphate is more concentrated?