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Consider the diamagnetic complex [M(en)(...

Consider the diamagnetic complex `[M(en)_(3)](ClO_(4))_(30`, Where M is a first row transition metal except Sc. Find the value of `x+y` of M in above complex.
If
x=oxidation state
y= number of d electrons present

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The correct Answer is:
9
x=+3,y=6
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