Stoichiometry#3
3.16 g of KMnO4 is dissolved in water and the solution is made upto 1 litre. An unknown salt containing 6.88 g of Fe2+ ion was dissolved in water and was made upto 100 ml.It was found that 20 ml of the salt solution decolorised 27.25 ml of the above permanganate solution. How many of the following statements are correct ? 1.Normality of ferrous ion=0.15 N 2.Actual strength of ferrous ion is 68.8 g/L. 3.Percentage of ferrous ion is 10.58% 4.Normality of ferrous ion is 0.13 N.
The answer is 3.
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