Consider the followinh reaction of permaganate ions.
(I)`10I^(-)+2MnO_(4)^(-)+16H^(+)rarr2Mn^(2+)8H_(2)O+5I_(2)`
(II) `5Fe^(2+)+MnO_(4)^(-)+8H^(+)rarrMn^(2+)+4H_(2)O+5Fe^(3+)``5NO^(2+)+2MnO_(4)^(-)+6H^(+)rarr2Mn^(2+)+5NO_(3)^(-)+3H_(2)O`
`2MnO_(4)^(-)+3Mn^(2+)+2H_(2)Orarr5MnO_(2)+4H+``5NO^(2+)+2MnO_(4)^(-)+6H^(+)rarr2Mn^(2+)+5NO_(3)^(-)+3H_(2)O`
`2MnO_(4)^(-)+3Mn^(2+)+2H_(2)Orarr5MnO_(2)+4H+``5NO^(2+)+2MnO_(4)^(-)+6H^(+)rarr2Mn^(2+)+5NO_(3)^(-)+3H_(2)O`
(III) `2MnO_(4)^(-)+3Mn^(2+)+2H_(2)Orarr5MnO_(2)+4H+`
In the above reaction, Which reaction occur in acidic solution?

Options

A. I and II
B. II and III
C. III,II and I
D. IV and II

Answer

C

Explanation

Reactions occur in acidic solution are
`10I^(-)+2MnO_(4)^(-)+16H^(+)rarr2Mn^(2+)+8H_(2)O+5l_(2)`
`5Fe^(2+)+MnO_(4)^(-)+8H^(+)rarrMn^(2+)+4H_(2)O+5Fe^(3+)`
`5NO_(2)^(-)+2MnO_(4)^(-)+6H^(+)rarr2Mn^(2+)5NO_(3)^(-)+3H_(2)O`