Iodine reacts with starch in water to produce an intensely blue color. Beta amylose, which is a form of soluble starch, traps iodine ions within its highly coiled structure to achieve this effect. More » Science Chemistry Atoms & Molecules

Iodine indicates the presence of starch in a solution by altering the energy level spacing in the amylose component of starch, creating an intense blue color. This energy change allows amylose to absorb visible light. More » Science Chemistry

Starch when mixed with Iodine turns a deep shade of blue because starch contains amylose. Amylose is a soluble component of starch as well as other carbohydrates. More »

Starch has the largest molecule out of all of starch, iodine and water. This is because it is composed of numerous units of glucose, so it's technically a polymer. More »

Iodine is a solid at STP. Symbolized by I, iodine is a purple solid at STP. It belongs to Group 17, Period 5 of the Periodic Table. More »

Iodine molecules containing two atoms of iodine (I2) each are non-polar. The bonded pair of electrons in the covalent bond is equally shared between the two atoms. More »

Iodine solution is made by mixing iodine into a mixture of potassium iodide; this mixture is commonly used to check for starch. Iodine solution is also known as povidone and is used to kill bacteria and treat infections ... More »