Which of the following equations is a balanced one -

Options

A. `5BiO_(3)^(-)+22H^(+)+Mn^(2+)rarr5Bi^(3+)+7H_(2)O+MnO_(4)^(-)`
B. `5BiO_(3)^(-)+14H^(+)+2Mn^(2+)rarr5Bi^(3+)+7H_(2)O+2MnO_(4)^(-)`
C. `2BiO_(3)^(-)+4H^(+)+Mn^(2+)rarr2Bi^(3+)+2H_(2)O+MnO_(4)^(-)`
D. `6BiO_(3)^(-)+12H^(+)+3Mn^(2+)rarr6Bi^(3+)+6H_(2)O+3MnO_(4)^(-)`

Answer

B

Explanation

`(i) xx5+(ii)xx2,` we get `14H^(-)+5BiO_(3^(-))+5Mn^(2-)rarr5Bi^(3-)+2MnO_(4^(-))+7H_(2)O`
Hence, (2) is the correct balanced reaction.