a) Write any two differences between primary standard and secondary standard substance. b) \( 3.15 \text{ g} \) of oxalic acid crystal \(…
Class 12 Chemistry · 2083 · Solved Question with Answer
a) Write any two differences between primary standard and secondary standard substance.
b) \( 3.15 \text{ g} \) of oxalic acid crystal\( (\text{C}_2\text{H}_2\text{O}_4 \cdot 2\text{H}_2\text{O}) \) was dissolved in water to make \( 500 \text{ mL} \) of its solution.
i) Determine the normality of the acid.
ii) The acid solution became permanently pink when \( 400 \text{ mL} \) of \( \text{KMnO}_4 \) solution (\( \text{eq.wt.} = 31.5 \)) was added during titration. What mass of the \( \text{KMnO}_4 \) is present in 1 liter of the solution?