Arrange the following in order of:
(a) Increasing oxidation no:
`MnCl_(2),MnO_(2),Mn(OH)_(3),KMnO_(4)`
(b) Decreasing oxidation no:
`HXO_(4),HXO_(3),HXO_(2),HXO`
(c ) Increasing oxidation no.: `I_(2),HI,HIO_(4),ICI`

Explanation

(a) `{:((a),MnCl_(2)lt,Mn(OH)_(3)lt,MnO_(2)lt,KMnO_(4)),("Ox.No".,+2,+3,+4,+7):}`
`{:((b),HXO_(4)gt,HXO_(3)gt,HXO_(2)gt,HXO),("Ox.No",+7,+5,+3,+1):}`
`{:((c ),HIlt,I_(2)lt,ICIlt,HIO_(4)),("Ox.No",-1,0,+1,+7):}`