Question

13. The oxidation number of C in
(1 Point)
CO2
+2
-2.
-4
+4.​

Answer 1

Answer:

+4 ....... as the oxidation state of Oxygen is -2 and 2×-2 will give -4 .... so to balance the charge c should be +4

Answer 2

Question

oxidation number of c in Co2 ?

• +2
• -2
• -4
• +4

Answer

the oxidation number of C in CO2 is -

• +4

Additional information ;

Co2 - carbon dioxide

• in a carbon dioxide there one carbon and two oxygen .

what is oxidation ?

• oxidation is the lost of electrons that means that an oxidizing agent take electron from that other substance so an oxidizing agent must be an electron .
• oxidation was defined as a gain of oxygen atom .
• when oxidation occur the oxidation state of the chemical species increases .
• oxidation doesn't necessarily involve oxygen . originally the term was used when oxygen cost electron loss in a reaction .

Or in simply we can say that :-

• oxidation is the loss of electron during a reaction by a molecule atom or ion .