The following is true of quarternary ammonium compounds EXCEPT
A) they are non-toxic at lower concentrations.
B) they are effective when combined with soaps.
C) they are tasteless.
D) they may be an ingredient in mouthwash.
E) they are stable.

Question

Quizplus · Accepted Answer

Quaternary ammonium compounds are not effective when combined with soaps, as soaps can inactivate them.

The Following Is True of Quarternary Ammonium Compounds EXCEPT