Multiple choice

Among the following, ________ is used as a fluorescent tracer.

  1. fluoranthene

  2. fluorene

  3. fluorenone

  4. fluorescein
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fluorescein is a synthetic organic compound available as a dark orange/red powder soluble in water and alcohol. It is widely used as a fluorescent tracer in many applications.

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