NURSING ANM AND GNM

Detailed explanation-1: -Iodine-KI Reagent: Iodine is not very soluble in water, therefore the iodine reagent is made by dissolving iodine in water in the presence of potassium iodide. This makes a linear triiodide ion complex with is soluble that slips into the coil of the starch causing an intense blue-black color.

Detailed explanation-2: -Explain which reagent is used in the Iodine test: Lugol’s reagent is used in the Iodine test. This reagent is a common disinfectant and comprises elemental iodine and potassium iodide (KI).

Detailed explanation-3: -In the presence of starch, iodine changes its color from brown to blue-black or purple. So, iodine can be used to test the presence of starch.

Detailed explanation-4: -The red iodine solution will stain the starch blue-black.