<prompt> All of the following cephalosporins have good activity against Pseudomonas aeruginosa except ?CephadroxilCefepimeCefoperazoneCeftazidime  <response>: Ans. is a i.e., Cephadroxil o Cephalosporins with antipseudomonal activity :- Ceftazidime, Cefoperazone, Cefepime 