EAN of cobalt is 36 in ` [Co(NH_(3))_(2) O_(2)(en)Cl]` thus ,`O_(2) ` is

Options

A. Dioxide
B. Superoxide ion
C. Peroxide ion
D. oxide

Answer

C

Explanation

`[Co(NH_(3))_(2) O_(2) (en)Cl]`
Let x and y be the charge on Co and `O_(2) ` , respectivlely
` x+2(0) +y+(0) +(-1) =0implies x+y=+1`
let ` x=+2 and y=-1`
` therefore EAN = 27-2+12=37`
Let ` x=+3 and y=-2`
` therefore EAN = 27-3+12=36`