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Q.

Antibiotics that are effective mainly against Gram-positive or Gram-negative bacteria X. Antibiotics that are effective against a single organism or disease are Y What is X and Y ? 

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a

X=Broad spectrum antibiotics.  Y = Narrow spectrum antibiotics. 

b

X =Broad spectrum antibiotics.  Y = Limited spectrum antibiotics. 

c

X= Narrow spectrum antibiotics. Y = Limited spectrum antibiotics. 

d

X = Narrow spectrum antibiotics. Y =Broad spectrum antibiotics. 

answer is C.

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Detailed Solution

Narrow spectrum antibiotics are effective against Gram-positive or Gram-negative bacteria. Limited spectrum antibiotics are effective against a single organism or disease. 

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