Question

Which of the following is an anionic detergent?

• A. Sodium stearate
• B. Sodium lauryl sulphate
• C. Cetyltrimethyl ammonium bromide
• D. Glyceryl oleate

Answer 1

Answer: (B)

Sodium lauryl sulphate

Answer 2

An anionic detergent is a type of surfactant that carries a negative charge in its hydrophilic head group. Among the options provided, sodium lauryl sulfate $[CH_3(CH_2)_{11} OSO_3Na]$ is the anionic detergent.

So, the correct answer is (B): Sodium lauryl sulphate.