SSC MTS EXAM

Detailed explanation-1: -Hair bleaching is a chemical process that alters the natural color of your hair. It strips your hair of its melanin, which is the pigment that gives your hair its color.

Detailed explanation-2: -Permanent dyes cause chemical changes that increase the penetration of the product into the hair, bleach the natural melanin, and create color molecules that get trapped inside the shaft. These chemical changes can damage the hair.

Detailed explanation-3: -Bleach turning hair to become yellow is a chemical change as there is change in structure due to the reaction of hair with chemical such as bleach.

Detailed explanation-4: -Chlorine bleaches are oxidizing agents; when chlorine reacts with water, it produces hydrochloric acid and atomic oxygen. The oxygen reacts easily with the chromophores to remove electrons from the molecule, chemically changing the structure of the molecule and the physical properties that cause the color are changed.