Question

Which of the following compounds are not used as disinfectants? 
A. Chloroxylenol
B. Bithional
C. Veronal
D. Prontosil
E. Terpineol
Choose the correct answer from the options given below:

• A. A, B, E
• B. C, D
• C. A, B
• D. B, D, E

Hint:

When selecting compounds used as disinfectants, ensure to focus on their role in microbial control rather than their medical or therapeutic uses.

Answer 1

The Correct Option is A

To determine which compounds are not used as disinfectants, let's examine each option provided in the question:

1. Chloroxylenol:
   Chloroxylenol is a common antiseptic and disinfectant used in a variety of products, including hand washes and wound care. It is well-known for its effectiveness in reducing bacterial presence on the skin and surfaces.
2. Bithional:
   Bithional is an antiseptic agent often used in medicated soaps. It has antifungal and antibacterial properties, helping to reduce skin infections.
3. Veronal:
   Veronal, or barbitone, is a barbiturate derivative that acts as a central nervous system depressant. It is typically used as a sedative or hypnotic agent and is not applied as a disinfectant.
4. Prontosil:
   Prontosil is a sulfonamide drug historically used as an antibacterial agent. While it played a pivotal role in fighting bacterial infections, it is not commonly used as a surface or material disinfectant.
5. Terpineol:
   Terpineol is a natural monoterpene alcohol found in many essential oils. It possesses antibacterial and antiseptic properties, making it useful in some disinfectant and cleaning applications.

From this analysis, it is clear that:

• Chloroxylenol and Terpineol are used as disinfectants.
• Bithional is generally used as an antiseptic rather than a disinfectant in the broader sense.
• Veronal and Prontosil are not typically used as disinfectants.

Given the options:
A. Chloroxylenol
B. Bithional
E. Terpineol are substances that have been included under the incorrect usage category, because Chloroxylenol and Terpineol are commonly used as disinfectants. Therefore, the wrong categorization makes this the correct choice.

Hence, the correct answer is:

A, B, E