The oxidation state of chlorine in HClO4 is? by Sunday | Oct 15 | Chemistry JAMB | 0 comments A. -5 B. -1 C. +1 D. +7 Correct Answer: Option D = +7 Users Also Read These:The oxidation state of chlorine in NaClO3 is?When chlorine is passed through a sample of water,…The oxidation state of carbon in HCOOH is?The property of chlorine which causes hydrogen…The oxidation state of oxygen in tetraoxosulphate…