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Liquid Chemicals: Surface-Active Agents

11. Controlling Microbial Growth / Liquid Chemicals: Surface-Active Agents / Problem 2

What is a common limitation of quaternary ammonium compounds in microbial control?

A

They are easily neutralized by soaps.

B

They are highly effective against all viruses.

C

They are highly toxic to humans at low concentrations.

D

They are ineffective against Gram-positive bacteria.

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