The oxidation state of iodine in orthoparaperiodic acid, H5IO6, is ________.

Question

Quizplus · Accepted Answer

The sum of oxidation states in a neutral compound is zero. The oxidation state of hydrogen is always +1 in compounds. Therefore, the sum of oxidation states of hydrogen in H5IO6 is +5. We know that the total oxidation state is zero, so the sum of oxidation states of iodine and oxygen must be -5. There are six oxygen atoms, each with an oxidation state of -2, leading to a total of -12. The oxidation state of iodine can be calculated as follows: 
IODINE: x 
5(Hydrogen) x (+1) + x(Iodine) + 6(Oxygen) x (-2) = 0 
5 + x - 12 = 0 
x = +7 
Therefore, the oxidation state of iodine in H5IO6 is +7.

The Oxidation State of Iodine in Orthoparaperiodic Acid, H5IO6, Is