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

  • A
    $(i), (ii), (iii)$
  • B
    $(i), (ii)$
  • C
    $(ii)$
  • D
    $(i), (ii), (iii), (iv)$

Explore More

Similar Questions

Acetone may be obtained from starch by the action of:

The microbe $Pseudomonas$ $denitrificans$ produces Vitamin

Which yeast is used in the production of alcoholic beverages?

. . . . . . are used in detergent formulations and are helpful in removing oily stains from laundry.

Match the following columns:
Column-$I$Column-$II$
$(a)$ Pectinase and Protease$(1)$ Clot buster
$(b)$ Streptokinase$(2)$ Immunosuppressive agent
$(c)$ Cyclosporin $A$$(3)$ Clarifying fruit juices
$(d)$ Lipase$(4)$ Removing oily stains

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo