Exams › JEE Advanced › Chemistry

Which of the following is classified as a narrow-spectrum antibiotic?

1. Ofloxacin
2. Ampicillin
3. Chloramphenicol
4. Penicillin

Correct answer: Penicillin

Solution

Penicillin (penicillin G) acts on a limited range of (mainly Gram-positive) bacteria and is the classic narrow-spectrum antibiotic, whereas ofloxacin, ampicillin and chloramphenicol are broad-spectrum.

Related JEE Advanced Chemistry questions

• Which of the following substances is classified as an antipyretic drug (a fever-reducing agent)?
• Match the following drugs with their correct classification: Paracetamol --- Antipyretic Seldane (terfenadine) --- Antihistamine Aspartame --- Artificial sweetening agent Which of the following statements about the above matching is true?
• Which of the following correctly describes the key structural feature of penicillin that is responsible for its antibiotic activity?
• Which of the following ions, when dissolved in water, reduces the lathering ability of soap?
• Which among the following is classified as an antibiotic?
• A patient is suffering from a deficiency of noradrenaline (norepinephrine). Which class of drug should be prescribed?

⚔️ Practice JEE Advanced Chemistry free + battle 1v1 →