Teaching EMRS TGT Mock Test 2023 General Knowledge Science Technology and Inventions

କେଉଁ ବୈଜ୍ଞାନିକ 'ପେନିସିଲିନ୍' ଆବିଷ୍କାର କରିଥିଲେ?

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ଆଲେକଜାଣ୍ଡର ଫ୍ଲେମିଂ
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ରବର୍ଟ କୋଚ୍
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ଲୁଇସ ପାସ୍ଚର 
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ଆର୍ନଷ୍ଟ ଚେନ୍ 
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