Moderate

Which of the following is an ordinary soap?

Correct answer: A. Sodium stearate

  • A. Sodium stearate
  • B. Sodium stearoyl lactylate
  • C. Sodium acetate
  • D. Sodium benzoate

Explanation

Sodium stearate is a salt of stearic acid, which is a fatty acid. It is a common ingredient in soap and is often used as a surfactant, helping to emulsify and solubilize oils and fats. So, sodium stearate is indeed an ingredient found in ordinary soap.

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The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.

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