Which of the following is incorrect about H2SO4
(A) It can act as oxidising agent with copper
(B) It acts as dehydrating agent with sugar
(C) It acts as acid in its reaction with BaO2
(D) It acts as reducing agent in its reaction with Cu2O
H2SO4 cannot act as reducing agent, because when a substance acts as reducing agent, it is oxidised itself and there is increase in O.N. In H2SO4 the O.N. of sulphur is +6,which is maximum.