Coordination Compounds · Nickel dimethylglyoxime complex

The statements that are incorrect about the nickel (II) complex of dimethylglyoxime are :

(A)It is red in colour
(B)It has a high solubility in water at pH = 9
(C)The Ni ion has two unpaired d-electrons
(D)The N – Ni – N bond angle is almost close to 90 $^\circ$
(E)The complex contains four five-membered metallacycles (metal containing rings)

Choose the correct answer from the options given below :

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