1.

EAN of cobalt is 36 in [Co(NH_(3))_(2)O_(2)(en)Cl]. Knowing that atomic number of Co is 27, O_(2) is present is

Answer»

PEROXIDE ION
dioxide ion
superoxide ion
OXIDE ion

Solution :Peroxide = `O_(2)^(2-)`, dioxide = `2 O^(2-)`, superoxide `=O_(2)^(-)`, oxide =`O^(2-)`
EAN = Z - Oxidation no. +2 `xx` coordination no.
If `O_(2)` is present as `O_(2)^(-)`, oxidation no. of Co = + 2 ltbr EAN = `27-2+2xx6=37`
If `O_(2)` is present as `O_(2)^(2-)`, oxidation no. of Co=+3
EAN=`27-3+2xx6=36`.


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