10g of pyrolusite on reaction with conc. HCl liberated 0.1 equivalent of Cl_(2). Percentage purity of pyrolusite sample-

10g of pyrolusite on reaction with conc. HCl liberated 0.1 equivalent

1.	10g of pyrolusite on reaction with conc. HCl liberated 0.1 equivalent of Cl_(2). Percentage purity of pyrolusite sample-
Answer» `87.0%` `43.5%` `21.75%` `100%` ANSWER :B