Question

y Which of the following is not a redox reaction ?
(a) CaCO3 + CaO + CO2
(b) O2 + 2H2 → 2H2O
(c) Na + H2O + NaOH + 1/2 H,
(d) MnCl2 MnCl2 + 1/2 C12
А
O O O
в
4
D​

Answer 1

CaCO3+CaO+co2 is the answer