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How many of following belong to antibiot...

How many of following belong to antibiotic ?
Crocin , penicillin , streptomycin , `KMnO_4,SO_2`

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To determine how many of the given substances belong to the category of antibiotics, we will analyze each substance one by one: 1. **Crocin**: - Crocin is primarily used as a pain reliever and is classified as an analgesic. It is effective for treating moderate pain, such as headaches. However, it does not have any antibacterial properties and is not used to treat bacterial infections. - **Conclusion**: Crocin is NOT an antibiotic. 2. **Penicillin**: - Penicillin is a well-known antibiotic that is effective against a variety of bacterial infections. It works by killing bacteria or inhibiting their growth. It is commonly used to treat infections such as pneumonia and other bacterial diseases. - **Conclusion**: Penicillin IS an antibiotic. 3. **Streptomycin**: - Streptomycin is another antibiotic that is used to treat severe bacterial infections. It is effective against certain types of bacteria and is often used in cases where other antibiotics may not be effective. - **Conclusion**: Streptomycin IS an antibiotic. 4. **KMnO4 (Potassium Permanganate)**: - KMnO4 is often used as an antiseptic and can be effective against certain skin infections and fungal infections. However, it is not classified as an antibiotic because it does not specifically target bacteria in the same way that antibiotics do. - **Conclusion**: KMnO4 is NOT an antibiotic. 5. **SO2 (Sulfur Dioxide)**: - Sulfur dioxide is a chemical compound that is primarily used as a preservative and antioxidant in food. It is not used as a medication and can be harmful to humans. It does not have any antibacterial properties and is not used to treat infections. - **Conclusion**: SO2 is NOT an antibiotic. Now, let’s summarize the findings: - **Antibiotics identified**: Penicillin and Streptomycin. - **Total number of antibiotics**: 2. **Final Answer**: 2 substances belong to the category of antibiotics.
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