The oxidation number of chlorine can be -1, 0, +1, +3, +4, +5, or +7, depending on the substance containing the chlorine. The most common oxidation numbers are -1 (as in HCl and NaCl ) and 0 (as in Cl2 )
Depending on the chemical containing chlorine, the oxidation number can be -1, 0, +1, +3, +4, +5, or +7. The oxidation values -1 (as in HCl and NaCl) and 0 are the most prevalent (as in Cl2 )
