(A) Chloramphenicol is a broad spectrum antibiotic.
(R) Antibiotics which kill (or) inhibit a wide range of gram positive and gram negative bacteria are said to be broad spectrum antibiotics.

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Both (A) and (R) are true but (R) is not the correct explanation of (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

(A) is true but (R) is false

answer is A.

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Detailed Solution

Chloramphenicol is primarily bacteriostatic, though high concentrations have been shown to exert cidal effect on some bacteria, e.g. H. influenzae.
It is a broad-spectrum antibiotic, active against nearly the same range of organisms (gram-positive and negative bacteria, rickettsiae, mycoplasma) as tetracyclines.
So, both (A) and (R) are true and (R) is the correct explanation of (A)

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