Statement 1:For the reaction  $B{r}_2+2NaOH\stackrel{ }{\to }NaBr{O}_3+NaBr+H_{2}O$  the n-factor for  $B{r}_2$  is  $\frac{5}{3}$
Statement 2: $B{r}_2+2NaOH\stackrel{ }{\to }NaBr{O}_3+NaBr+H_{2}O$  is a not disproportionation reaction 

Statement–I & II is true, Statement–II is a NOT correct explanation of Statement–I

Statement–I & II is true, Statement–II is a correct explanation of Statement–I

Statement–I is false, Statement–II is true

Statement–I is true, statement–II is false