J.R. S. answered 05/04/22
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
H2SO4 + Ba(OH)2 = BaSO4 + H2O
S on the left has an oxidation number of 6+. On the right it has an oxidation number of 6+.
H is 1+ on both sides
Ba is 2+ on both sides
O is 2- on both sides.
This is NOT a redox reaction. Therefore there is no oxidizing or reducing agent.