WBCS.LIVE practice question

Which of the following is the main chemical component of pearls?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Calcium carbonate
  2. Magnesium sulfate
  3. Calcium chloride
  4. Sodium bicarbonate

Correct answer and explanation

Correct answer: Calcium carbonate

Explanation: āœ… Correct Answer: A) Calcium carbonate šŸ“š Explanation: Pearls are primarily composed of calcium carbonate, specifically in the form of aragonite or a mixture of aragonite and calcite. These minerals are held together by a complex organic protein called conchiolin. This combination of mineral and protein creates the unique iridescent luster known as "nacre" or "mother-of-pearl."