Question

Oxidation of thiosulphate with iodine gives

• A. Sulphate ion
• B. Sulphite ion
• C. Tetrathionate ion
• D. Sulphide ion

Answer 1

Answer: (C)

$\underset{\text{ Sod. thiosulphate }}{2N{a}_2{S}_2{O}_3+I_2}\to \underset{\text{ Sod. tetrathionate }}{N{a}_2{S}_4{O}_6}+2NaI$