Texas Barber Exam Practice Test 2026 – Complete Preparation Guide

Bactericides, fungicides, and virucides are all types of disinfectants. Disinfectants are chemical agents that are used to eliminate or inactivate microorganisms on inanimate objects. While all the other options listed - antiseptics, antibiotics, and preservatives - are used to kill or inhibit the growth of microorganisms, they are not classified as disinfectants. Antiseptics are used on living tissue, antibiotics are used to treat bacterial infections, and preservatives are used to prevent the growth of microorganisms in food or other products. Therefore, D is the correct answer for this question.