Question 20 of 93

Which is not a redox reaction?

(a) BaO2 + H2SO4 BaSO4 +  H2O

(b) 2BaO + O2  2BaO

(c) 4KClO3 4KClO2 + 2O2 

(d) SO2 + 2H22H2O + 3S