Question 1
For the perchlorate ion ClO
4- , what are the oxidation states of the Cl and O, respectively?
◦ – 1, – 2
◦ +8, – 2
◦ +7, – 2
◦ +6, – 2
◦ +2, – 1
Question 2
For which one of the following acids is chlorine in the +5 oxidation state?
◦ HCl
◦ HClO
◦ HClO
2◦ HClO
3◦ HClO
4