The oxidation states of the most electronegative element in the products of the reaction between `BaO_2` with dilute `H_2SO_4` are

Options

A. 0 and -1
B. -1 and -2
C. -2 and 0
D. -2 and-1

Answer

B

Explanation

(b) `BaO_2, + H_2SO_4 rarr BaSO_4, + H_2O2` Oxygen is the most elcctronegative element in the reaction and has the oxidation states of -1 ( in `H_2O_2`,) and -2 (in `BaSO_4`,). In `H_2O_2`, peroxo ion is present.