Ncert Exercises & Solutions

Which of the following arrangements represents the increasing oxidation number of the central atom?

1. ${CrO}_{2}^{-},$ ${ClO}_{3}^{-},$ ${CrO}_{4}^{2 -},$ ${MnO}_{4}^{-}$

2. ${ClO}_{3}^{-},$ ${CrO}_{4}^{2 -},$ ${MnO}_{4}^{-},$ ${CrO}_{2}^{-}$