The EAN of cobalt in the complex ion `[Co(en)_(2)Cl_(2)]^(+)` is

Options

A. 27
B. 36
C. 33
D. 35

Answer

B

Explanation

High spin `d^(6): t_(2g)^(4) e_(g)^(2)`
`CFSE=[0.4 xx 4-0.6 xx 2] triangle" Low spin "d^(4): t_(2g)^(4) e_(g)^(0)`
`CFSE=[0.4 xx 4]=1.6 triangle_(0)" Low spin "d^(5) : t_(2g)^(5) e_(g)^(0)`
`CFSE=[0.4 xx 5]triangle_(0)" High spin "d^(7): t_(2g)^(5) e_(g)^(2)`
`CFSE=[0.4 xx 5-0.6 xx 2]triangle_(0)`