The oxidation number of H is +1 and the oxidation numbers of each carbon are +3
O.N. of compound = 0
O.S. of Carbon = -2
O.S. of Hydrogen = +1
-3
Oxidation number is usually defined along the lines of the charge on the central atom if all "ligands" are removed along with the electron pairs.Now C2H4 is H2C=CH2 so we remove H as H- and leave a "charge" on the carbon atoms of 2+. the oxidation number of carbon is therefore (+)2.There is always debate about this term and the closely related term oxidation state. Confusingly some people use the term oxidation number to mean oxidation state.To calculate oxidation state which uses the relative electronegativity to determine which atom "keeps" the electrons, the hydrogens would be treated not as H- but as H+ leaving the carbon in an oxidation state of -2.My advice would be to check your notes and see which definition your teacher is using.
oxidation number of I is -1. oxidation number of F is +1.
Zn has oxidation number +2; S has oxidation number -2
The oxidation number for H is +1, and the oxidation number for O is -1.
-3
Oxidation number is usually defined along the lines of the charge on the central atom if all "ligands" are removed along with the electron pairs.Now C2H4 is H2C=CH2 so we remove H as H- and leave a "charge" on the carbon atoms of 2+. the oxidation number of carbon is therefore (+)2.There is always debate about this term and the closely related term oxidation state. Confusingly some people use the term oxidation number to mean oxidation state.To calculate oxidation state which uses the relative electronegativity to determine which atom "keeps" the electrons, the hydrogens would be treated not as H- but as H+ leaving the carbon in an oxidation state of -2.My advice would be to check your notes and see which definition your teacher is using.
Equations that separate the oxidation from the reduction parts of the reaction
oxidation number of I is -1. oxidation number of F is +1.
Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.
Zn has oxidation number +2; S has oxidation number -2
Silicon's oxidation number is +4.Oxygen's oxidation number is -2
The oxidation number for H is +1, and the oxidation number for O is -1.
Oxidation number of Si is +4.Oxidation number of O is -2.
Carbon atoms oxidation number is +2.Hydrogen's oxidation number is +1.Oxygen's oxidation number is -2.
Potassium's oxidation number is +1. Chromium's oxidation number is +6. Oxygen's oxidation number is -2.
Oxidation number of Li is +1. Oxidation number of oxygen is -2.