Chemistry 2002 JAMB Past Questions - Question 17: Tetraoxosulphate (VI) acid burns the skin by

Correct Answer

B

Explanation

Tetraoxosulphate(VI) acid, commonly known as sulfuric acid (H₂SO₄), is a highly corrosive substance. When it comes into contact with the skin, it can cause severe burns and tissue damage. The burning effect is primarily due to the strong acidic nature of sulfuric acid, which can react with proteins and other biological molecules in the skin.

Sulfuric acid is a strong dehydrating agent, meaning it has the ability to remove water molecules from substances. When it contacts the skin, it can react with the water content in the skin cells, leading to dehydration. This process is exothermic, meaning it releases heat, further contributing to the thermal damage of tissues.

The acid can also react with proteins, causing denaturation. Proteins are essential components of living tissues, and their denaturation disrupts the normal structure and function of cells. The combination of dehydration, thermal effects, and protein denaturation leads to the formation of necrotic (dead) tissue and the characteristic burns associated with sulfuric acid exposure.

Immediate and thorough washing of the affected area with water is crucial in case of sulfuric acid exposure to minimize the extent of damage. Medical attention should be sought promptly for proper treatment of acid burns. It is important to wear appropriate protective equipment and follow safety protocols when working with or handling strong acids to prevent accidental exposure.