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 \( \mathrm{pH} = 9 \).
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:
