Redox reaction

[ani1985]

Hello,
I am confused about the following reaction which is a Redox reaction. The following half reaction is from this main reaction-
Mn₂+ + NaBiO₃ + H+ -----> MnO₂ + Bi₃+ + Na+ + H₂O
I want to know that the following half reaction is correct or not
Mn₂+ ---> MnO₂ + 2e-
NaBiO₃ + 2e- ---> Bi₃+

Thanks in advance!!

[expert]

Yes, that is correct.
You can also present in in a more obvious form:
Mn(2+) - 2e- ---> Mn(4+)
Bi(5+) + 2e- ---> Bi(3+)