Statement-I : $O_2{F}_2$  oxidizes   ${\mathrm{XeF}}_4 \text{to }{\mathrm{XeF}}_6$ 

Statement-II:  ${\mathrm{Se}}_2{\mathrm{Cl}}_2$  undergoes disproportionation to give ${\mathrm{SeCl}}_4$ and Se. 

Statements I and II are correct

Statement I is correct and statement II is incorrect

 Statement I is incorrect and statement II is correct

 Statements I and II are incorrect