Final answer:
The use of iodised salt is visible due to the distinct color it gains from the presence of iodine. This is done to prevent iodine deficiency disorders. Regular salt is pure white, while iodised salt has a slightly brown or yellow tint to it.
Step-by-step explanation:
The use of iodised salt is visible due to the presence of iodine, which gives the salt a distinct color. Iodine is added to salt as a way to prevent iodine deficiency disorders, such as goiter. When iodine is added to salt, it turns the salt slightly brown or yellow.
For instance, when you compare iodised salt with regular salt, you will notice a difference in color. Regular salt is pure white, while iodised salt has a slightly brown or yellow tint to it. This visible difference helps consumers easily identify and choose iodised salt for their dietary needs.
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