COMEDK Exam 2014 Solved Paper

ClO4−does not show disproportionate because in this oxoanion chlorine is present in its highest oxidation state (+7). The disproportionation reactions for the other three oxoanions of chlorine are as follows:

+1

3ClO−

⟶

−1

2Cl−1

+

+5

ClO3−

+3

6ClO2−

hc

⟶

+5

4ClO3−

+

−1

2Cl−

+5

4ClO3−

⟶

−1

Cl−

+

+7

3ClO4−