Question

Which detergent type is commonly found in shampoos and toothpaste?

Options

• Anionic detergent

• Cationic detergent

• Natural detergent

• Amphoteric detergent

Answer 1

Anionic detergent

Explanation:

Anionic detergents carry a negatively charged (anionic) hydrophilic head, typically a sulphonate or sulphate group (–SO₃⁻ or –OSO₃⁻). The most common example is Sodium Lauryl Sulphate (SLS), which is widely used in shampoos, toothpastes, and body washes because of its excellent foaming and cleansing ability.