Consider the following statements: Statement I: The effect of ant bite can be neutralised by rubbing calamine solution. Statement II: Calamine solution contains zinc carbonate which is basic in nature. In the light of the above statements, choose the correct answer from the Options given below :

Calamine solution

• It is a topical medication typically used to relieve itching and irritation caused by skin conditions such as insect bites, rashes, and sunburn. Hence, Statement I is correct. It is usually a pink lotion made from a combination of zinc oxide and ferric oxide.

Composition

• Zinc Oxide (ZnO): The primary active ingredient, zinc oxide, is known for its astringent and antiseptic properties. It helps to reduce itching and protect the skin. The zinc oxide in calamine is an amphoteric oxide, meaning it can act as both an acid and a base. However, in the formulation of calamine lotion, it exhibits basic properties. Hence, Statement II is correct.
• Ferric Oxide (Fe2O3): Ferric oxide gives the solution its characteristic pink colour and also has soothing properties.
• pH Level: The pH of calamine lotion is generally slightly basic, which helps in soothing the skin and reducing irritation. Its basic nature helps neutralize acidic conditions on the skin, such as those caused by insect bites, rashes, or other irritations.
• Therefore, Statement II is the correct explanation of Statement I.