Problem 106 - A Complete Resource Book in Chemistry for JEE Main

Question

Select the incorrect statements? (a) Chloramphenicol is a board spectrum Antibiotic (b) Ampicillin and Amoxicillin are derivatives of Penicillin (c) Naproxen is an Analgesics (d) Barbitaric Acid is an Antibiotic.

Step-by-Step Solution

Answer

Statement (d) is incorrect; Barbitaric Acid is not an antibiotic.

Step 1: Analyze Each Statement

Evaluate each of the statements. Statement (a) suggests that Chloramphenicol is a broad spectrum antibiotic. This is correct; Chloramphenicol is known for its broad antimicrobial coverage. Statement (b) indicates that Ampicillin and Amoxicillin are derivatives of Penicillin. This is also true; both are indeed penicillin derivatives. Statement (c) asserts that Naproxen is an analgesic. This is accurate; Naproxen is commonly used for pain relief. Statement (d) claims that Barbitaric Acid is an antibiotic. This is incorrect; Barbitaric Acid is not known as an antibiotic but rather as a barbiturate compound.

Step 2: Identify Incorrect Statement

After analyzing each statement, we find that statement (d) is incorrect as Barbitaric Acid is not an antibiotic while all other statements are correct.

Key Concepts

Antibiotics

Antibiotics are a type of medication used to treat bacterial infections. They work by targeting and eliminating bacteria, rendering them ineffective and stopping the spread of the infection. Despite their effectiveness, antibiotics should be used carefully to prevent antibiotic resistance. This happens when bacteria evolve in a way that makes them resistant to the effects of medication, rendering typical treatments ineffective.
One of the key features of antibiotics is their spectrum of activity. Some antibiotics, like Chloramphenicol, are termed 'broad spectrum' because they are effective against a wide range of bacteria. Others are 'narrow spectrum,' targeting specific types of bacteria.
When using antibiotics, it is crucial to complete the entire prescribed course, even if symptoms improve before finishing. This ensures that all the bacteria are killed and reduces the chance of resistance forming.

• Work against bacterial infections
• Can be broad or narrow spectrum
• Important to complete the full course

Analgesics

Analgesics are medications designed to relieve pain without causing loss of consciousness. They are commonly known as painkillers. Analgesics are vital in managing pain from various conditions such as headaches, arthritis, or after surgeries. Naproxen, for instance, is a commonly used non-prescription analgesic that helps reduce inflammation and pain.
There are two main types of analgesics: opioid and non-opioid.

• Opioid analgesics include medications like morphine and codeine, which are typically used for severe pain.
• Non-opioid analgesics, such as aspirin and acetaminophen, are suitable for milder pain levels.

Despite the benefits of analgesics, they should be taken as directed. Misuse, especially of opioid analgesics, can lead to serious health concerns including dependency and overdose.

Penicillin Derivatives

Penicillin derivatives are a class of antibiotics derived from the basic structure of penicillin. Ampicillin and Amoxicillin are well-known derivatives of penicillin, often used in treating a variety of bacterial infections. They have adjusted chemical structures compared to natural penicillin, which broadens their antibiotic spectrum or increases their stability in the body.
These derivatives function by interfering with the bacterial cell wall synthesis, effectively killing the bacteria. They are often prescribed for infections like ear infections, pneumonia, and urinary tract infections. However, allergies to penicillin and its derivatives are fairly common and can range from mild reactions to severe, life-threatening reactions.

• Derived from penicillin
• Include medications like Ampicillin and Amoxicillin
• Used for treating various infections

Despite their widespread use, it's important to only use penicillin derivatives when prescribed by a healthcare professional to avoid unnecessary antibiotic resistance.