Role of hydrogen peroxide iin the following reaction is respectively.
`(i)" " H_(2)O_(2) +O_(3) rarr H_(2)O+ZO_(2)`
`(ii)" " H_(2)O_(2)+Ag_(2)Orarr Aag+H_(2)O+O_(2)`
A. Oxidising in (a) and reducing in (b)
B. Reducing in (a) and oxidising in (b)
C. Reducing in (a) and (b)
D. Oxidising in (a) and (b)