Correct statement/statements among the following is/are

${\text{N}}_{\text{2}}{\text{F}}_{\text{2}}$  have two geometrical forms and both are planar

${\text{BrF}}_3$ is used as an aprotic solvent

Hydrolysis of ${\text{K}}_{\text{2}}{\text{S}}_{\text{2}}{\text{O}}_{\text{8}}$  with ${\text{D}}_{\text{2}}\text{O}$   gives ${\text{D}}_{\text{2}}{\text{O}}_{\text{2}}{\text{\hspace{0.17em}\&\hspace{0.17em}KDSO}}_{\text{4}}$ .

Cu, Sc & Hg are transition elements