Match the reactions in Column I with nature of the reactions `//` type of the products in Column II.

Options

A. `O_(2)^(-)rarrO_(2)+O_(2)^(2-)" "(p)` redox reaction
B. `CrO_(4)^(2-)+H^(+)rarr" "(q)` one of the products has trigonal planar structure
C. `MnO_(4)^(-)+NO_(2)^(-)+H^(+)rarr" "(r) ` dimerica bridge tetrahdedral metal ion
D. `NO_(3)^(-)+H_(2)SO_(4)+Fe^(2+)rarr" "(s)` disproportionation

Answer

`(A-p,s);(B-r);(C-p,q);(D-p)`

Explanation

`KMnO_(4)rarrK_(2)MnO_(4)+MnO_(2)+O_(2)`
`K_(2)Cr_(2)O_(7)rarrK_(2)CrO_(4)+Cr_(2)O_(3)+O_(2)`
`Pb_(3)O_(4)rarrPbO+O_(2)`
`Pb(NO_(3))_(2)rarrPbO+NO_(2)+O_(2)`
`PbO_(2)rarrPbO+O_(2)`