<span>IKI solution looks for starches, while Benedict's looks for sugars. IKI is iodine potassium iodide, which turns a dark blue when in the presence of amylase. Benedict's reagent is often used to look for reducing sugars, such as glucose, and turns colors ranging from a light green to a dark-red or brown with a cuprous precipitate in the presence of higher quantities of sugars in the tested solution.</span>
From the equation; 4 Al + 3 O2 = 2 Al2O3 The mole ratio of Oxygen is to Aluminium hydroxide is 3:2. Therefore; moles of Al2O3 is (0.5/3 )× 2 = 0.333 moles Therefore; The moles of aluminium oxide will be 0.333 moles
