Question

An antibiotic contains nitro group attached to aromatic nucleus. It is
(a) penicillin
(b) streptomycin
(c) tetracycline
(d) chloramphenicol

Answer 1

$\huge{\bf{ \green{\fbox{\underline{ \color{blue}{ c) tetracycline}}}}}}$

Answer 2

$\textbf {\underline {\underline { penicillin }}}$