Chemistry Carboxylic Acids DUHS 2024
PMDC Verified Question 13 of 94
It is used as a preservative and antibacterial agent in livestock feed
A
Butyric acid
B
Caproic acid
C
Formic acid
D
Propionic acid
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Formic acid
Concept:

Short-chain organic acids are widely used in agriculture due to their powerful antimicrobial properties, preventing the spoilage of animal feed.

Solution:

  • Formic acid (\( \text{HCOOH} \)) is highly efficacious against bacteria (especially Salmonella) and fungi.


  • It is industrially sprayed onto livestock feed and silage. It rapidly lowers the pH, inhibiting microbial growth and preserving the nutritional value of the feed over long winter months.


Why other options are incorrect:

While propionic acid is also used as a mold inhibitor, formic acid is heavily tested in textbooks as the primary antibacterial preservative for livestock feed.

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