Question

The degree of unsaturation of lipids can be measured as
A. Iodine number
B. Saponification number
C. Reichert Meisel number
D. Polanski number

Answer 1

Hint:
Before we proceed to the solution it is essential to know about the unsaturation of lipids
Any fat or fatty acid with one or more double bonds in the fatty acid chain is considered unsaturated.
Unsaturation is determined by the mass of iodine that reacts with the fat or oil.
The iodine number of the fat or oil is calculated using the amount of iodine that reacts, and this value is then used to denote how unsaturated the grease or oil is.

Complete step by step answer:
The most significant oil analytical property is unsaturation, which is measured by the iodine value (IV), a measure of unsaturation.
It has been discovered that heating oil results in more intense thermo-oxidative changes than heating oil that contains food, which results in a relative loss of the C18:2 fatty acid and a reduction in the iodine value of the oil.
Iodine was produced when unreacted iodine monochloride was combined with potassium iodide to create iodine, whose concentration was measured using sodium thiosulfate titration.
Therefore, the degree of unsaturation of lipids is measured as the Iodine number

Option ‘A’ is correct

Note:
Unsaturation is determined by the mass of iodine that reacts with the fat or oil.
The iodine number of the grease or oil is calculated using the amount of iodine that reacts, and this value is then used to denote how unsaturated the fat or oil is.
The amount of iodine, measured in grams, that is absorbed by 100 grams of oil, fat, or wax is known as the iodine value, sometimes known as the iodine number, in analytical chemistry.