In the balanced chemical reaction
`IO_(3)^(ө)+al^(ө)+bH^(ө)rarrcH_(2)O+dI_(2)`
`a, b,c`, and `d`, respectively, correspond to

Options

A. `5`,`6`,`5`,`5`
B. `5`,`3`,`6`,`3`
C. `3`,`5`,`3`,`6`
D. `5`,`6`,`3`,`3`

Answer

D

Explanation

`IO_(3)^(-)+aI^(-)+bH^(+) rarr cH_(2)O+dl_(2)`
Step`1:` `I^(-1)rarrI_(2)`(oxidation)
`IO_(3)^(-) rarr I_(2)` (reduction)
Step `2:` `2IO_(3)^(-)+12H^(+) rarr I_(2)+6H_(2)O`
Step `3:` `2IO_(3)^(-)+12H^(+)+10e rarr I_(2)+6H_(2)O`
`2I^(-) rarr I_(2)+2e`
Step `4:` `2IO_(3)^(-)+12H^(+)+10e^(-) rarr I_(2)+6H_(2)O`
`[2I^(-) rarr I_(2)+2e]5`
Step `5:` `2IO_(3)^(-)+10I^(-)+12H^(+) rarr 6I_(2)+6H_(2)O`
`IO_(3)^(-)+5I^(-)+6H^(+) rarr 3I_(2)+3H_(2)O`
On comparing, `a=5`, `b=6`, `c=3`, `d=3`