Question

oxidation number of to 2CO2​

Answer 1

Answer:

2CO + O2 = 2CO2 In the above reaction the oxidation number of carbon changes from (1) +2 to +1; (2) +2 to +4; (3) +4 to +1; (4) +4 to +2.

Answer 2

Answer:

Explanation:

The oxidation number of C in carbon dioxide (CO2) is (rules 1 & 2): 0 + (2 x 2) = +4 [Check (rule 3): +4 + 2(-2) = 0] The oxidation number of C in methane (CH4) is (rules 1 & 2): 0 – (4 x1) = -4 [Check (rule 3): -4 + 4(-1) = 0].