Complex of $\mathrm{HgCo}\cdot 4\mathrm{SCN}$ has two isomers X and Y. If both isomers give scarlet red ppt. with KI and magnetic moment $\left(\mu \right)\text{ of }X>Y$ then, which of the following option is incorrect? 

Since both isomers has ${\mathrm{sp}}^3$ hybridizationComplex of $\mathrm{HgCo}\cdot 4\mathrm{SCN}$ has two isomers are $\stackrel{+2}{\mathrm{Hg}}\left[{\mathrm{CO}}^{+2}\mathrm{Co}(\mathrm{SCN}{)}_4\right]$ and ${ }^{+2}\left[{\mathrm{CO}}^{+2}o(\mathrm{NCS}{)}_4\right]$ They give scarlet red ppt. with $\mathrm{Kl}$ and magnetic moment $\left(\mu \right)\text{ of }X>Y$ then both have same hybridization.

Hence, option D is correct.