Question

Which one of the following does not follow EAN rule?

A
Fe(CO)5
B
V(CO)6
C
K4[Fe(CN)6]
D
Mn2(CO)10

Solution

The correct option is C $$V(CO)_{6}$$For $$Fe(CO)_5$$, $$EAN=26-0+10=36$$. Thus, it follows EAN rule.For $$V(CO)_6$$, $$EAN=23-0+12=35$$. Thus, it does not follow EAN rule.For $$K_4[Fe(CN)_6]$$, $$EAN=26-2+12=36$$. Thus, it follows EAN rule.For $$Mn_2(CO)_{10}$$, $$EAN=25+1+10=36$$. Thus, it follows EAN rule.Chemistry

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