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(A) Alexander Fleming discovered penicillin in $1928$ from the mould $Penicillium$ $notatum$.However,its full potential as an effective antibiotic was

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$(i), (ii), (iii)$

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(A) Alexander Fleming discovered penicillin in $1928$ from the mould $Penicillium$ $notatum$.However,its full potential as an effective antibiotic was established much later by Ernst Chain and Howard Florey.All three scientists,Alexander Fleming,Ernst Chain,and Howard Florey,were awarded the Nobel Prize in $1945$ for this discovery and development.Therefore,the correct combination is $(i), (ii),$ and $(iii)$.

Which of the following scientists established penicillin as an effective antibiotic?
$(i)$ Ernst Chain
$(ii)$ Alexander Fleming
$(iii)$ Howard Florey
$(iv)$ Waksman

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Which of the following scientists established penicillin as an effective antibiotic?$(i)$ Ernst Chain$(ii)$ Alexander Fleming$(iii)$ Howard Florey$(iv)$ Waksman