Which halogen species can undergo disproportionation

1. A.
   ${BrO}^{-}$
2. B.
   ${BrO}_{2}^{-}$
3. C.
   ${BrO}_{3}^{-}$
4. D.
   ${BrO}_{4}^{-}$

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1. A.
   Statement I is correct but statement II is incorrect.
2. B.
   Statement I is incorrect but statement II is correct
3. C.
   Both statement I and statement II are incorrect
4. D.
   Both statement I and statement II are correct

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1. A.
   Only $I_{2}$
2. B.
   ${Cl}_{2},{Br}_{2}$ and $I_{2}$
3. C.
   $F_{2},{Cl}_{2}$ and ${Br}_{2}$
4. D.
   $F_{2}$ and ${Cl}_{2}$

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1. A.
   ${ClO}_{2}^{-}$
2. B.
   ${ClO}_{4}^{-}$
3. C.
   ${ClO}^{-}$
4. D.
   ${ClO}_{3}^{-}$

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