Which of the following forms a complete set of oxyacids in which it exhibits the oxidation states of +1,+3,+5,and +7?
A)fluorine
B)chlorine
C)bromine
D)iodine
E)astatine

Question

Quizplus · Accepted Answer

Chlorine can form the following oxyacids in which it exhibits the oxidation states of +1 (hypochlorous acid, HClO), +3 (chlorous acid, HClO2), +5 (chloric acid, HClO3), and +7 (perchloric acid, HClO4). None of the other halogens have an oxyacid in which they exhibit an oxidation state of +1. Bromine can form oxyacids in which it exhibits oxidation states of +3, +5, and +7, but not +1. Iodine and astatine can form oxyacids in which they exhibit oxidation states of +3, +5, and +7, but neither of them has an oxyacid in which they exhibit an oxidation state of +1. Therefore, the best choice is B (chlorine).

Which of the Following Forms a Complete Set of Oxyacids