The chemical reaction between Hydrogen sulphide and iodine to give Hydrogen iodide and sulphur is given below: ?H2S + I2 ------> 2HI + S The reducing and oxidizing agents involved in this redox reaction are: ?a. Iodine and sulphur respectively ?b. Iodine and hydrogen sulphide respectively ?c. Sulphur and iodine respectively ?d. Hydrogen sulphide and sulphur