Question

Which of the following is not a redox reaction A) 2Mg+O2---2MgO b) CaCO3+2HCl---CaCl2+CO2+H2O c) 2cuCl2---Cu2Cl2+Cl2 d) So2+I2+2H2O----H2SO4+2HI

Answer 1

Answer:

A) 2Mg+O2----2MgO

C)2CuCl2----

Answer 2

Answer:b

Explanation:

Because oxidation numbers of all the elements in the option b remains the same on both sides of the equation