0.2g of a sample of H_2O_2required 10mL of N KMnO_4in a titration in the presence of H_2SO_4Purity of H_2O_2 is

0.2g of a sample of H_2O_2required 10mL of N KMnO_4in a titration in t

1.	0.2g of a sample of H_2O_2required 10mL of N KMnO_4in a titration in the presence of H_2SO_4Purity of H_2O_2 is
Answer» 0.25 0.85 0.65 0.95 Solution :`W/17xx1000=10xx1` `W = (170)/(1000) = 0.17 ` gm 0.2 gm `rarr` 0.17 gm PURE 100 gm `rarr` ? `=(100xx0.17)/(0.2) =85%`