Question:
Which of the following is used as disinfectant as well as antiseptic?
Which of the following is used as disinfectant as well as antiseptic?
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Phenol, also known as carbolic acid, is a classical antiseptic and disinfectant.
Updated On: Feb 18, 2026
- Veronal
- Seldane
- Prontosil
- Phenol
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The Correct Option is D
Solution and Explanation
Step 1: Understand the terms disinfectant and antiseptic.
Disinfectants are substances used to kill microorganisms on non-living surfaces, while antiseptics are used on living tissues to prevent infection.
Step 2: Analyze the given options.
Veronal is a sedative drug.
Seldane is an antihistamine drug.
Prontosil is an antibacterial drug used as a chemotherapeutic agent.
Phenol is used both as a disinfectant (on surfaces) and as an antiseptic (in dilute solutions).
Step 3: Conclusion.
Hence, phenol is used as both a disinfectant and an antiseptic.
Disinfectants are substances used to kill microorganisms on non-living surfaces, while antiseptics are used on living tissues to prevent infection.
Step 2: Analyze the given options.
Veronal is a sedative drug.
Seldane is an antihistamine drug.
Prontosil is an antibacterial drug used as a chemotherapeutic agent.
Phenol is used both as a disinfectant (on surfaces) and as an antiseptic (in dilute solutions).
Step 3: Conclusion.
Hence, phenol is used as both a disinfectant and an antiseptic.
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