The acid obtained from the fungus $Aspergillus$ $niger$ is .......

Who established the full potential of penicillin as an effective antibiotic?

Woodruff $(1941)$ was responsible for the isolation of:

Which of the following beverages are produced by distillation and which are produced without distillation?
$I -$ Wine, $II -$ Rum, $III -$ Brandy, $IV -$ Beer, $V -$ Whisky

What concentration of alcohol becomes toxic to yeast and causes its death?

Micrococcus ureae converts