Multiple choice

Pyrethrum is prepared from which of the following plants?

  1. Vetiver

  2. Cymbopogon

  3. Chrysanthemum

  4. Tephrosia

  5. -
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pyrethrins are active ingredients in pyrethrum that kill insects. Pyrethrum was a genus of several Old World plants, now classified as Chrysanthemum or Tanacetum. They are now cultivated as ornamentals for their showy flower heads.

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