Multiple choice general knowledge science & technology

The chemical known as thimerosol has been used to preserve saline solutions and vaccines. Thimerosol contains which metal?

  1. Iron

  2. Cadmium

  3. Mercury

  4. Silver
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Thimerosal (spelled thimerosol in the question) is an organomercury compound containing approximately 49% mercury by weight. It was widely used as a preservative in vaccines and other medical products. Iron, cadmium, and silver are not components of thimerosal.

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