Question

The oxidation states of iodine in ${HIO_4, H_3IO_5}$ and ${H5IO6}$ are respectively

• A. + 1, + 3, + 7
• B. + 7, + 7, + 3
• C. + 7, + 7, + 7
• D. +7, + 5, + 3

Answer 1

Answer: (C)

+ 7, + 7, + 7

Answer 2

Calculating the oxidation states of I, we get ${H5IO6}$ ; 5 + x - 12 = 0 or x = +7 ${H3IO5}$; 3 + x - 10 = 0 or x = +7 ${HIO4}$ ; 1 + x - 8 = 0 or x = +7 Thus, the correct answer is + 7, +7, +7