Penicillin, an antibiotic drug was discovered by__________________?

Related Mcqs:

1. Which of the following is not an antibiotic ?

   A. Penicillin
   B. Streptomycin
   C. Tetracycline
   D. Quinine

2. Penicillin is made employing _______________ fermentation process?

   A. Continuous
   B. Aerobic batch
   C. Anaerobic batch
   D. None of these

3. Penicillin is separated from fermented broth by ____________________?

   A. Extraction with amyl or butyl acetate
   B. Ternary Azeotropic distillation
   C. Evaporator in calandria
   D. Extractive distillation

4. Process conditions in fermentator used for production of penicillin is____________________?

   A. 25°C, 2 atm
   B. 50°C, l0 atm
   C. 30°C, 200 mm Hg (absolute)
   D. 90°C, 45 atm

5. Baking soda is chemically represented by__________________?

   A. Na2CO3
   B. NaHCO3
   C. Na2CO3.H2O
   D. Na2CO3.10H2O

6. Prussian blue is chemically represented by__________________?

   A. FeO.TiO2
   B. Ca SO4 . 2H2O
   C. Fe4 [Fe (CN6)3]
   D. AlF3 . 3NaF

7. Fat dispersed in water is exemplified by__________________?

   A. Colloids
   B. Gel
   C. Butter
   D. Emulsion

8. Wet chlorine gas produced during electrolysis of brine is dehydrated by__________________?

   A. Spraying 66° Be H2SO4 counter current to the flow of the gas
   B. Passing it through a bed of diatomaceous earth
   C. Passing it through a bed of silica gel
   D. None of these

9. Temporary hardness of water can be removed by__________________?

   A. Addition of alum (a coagulant)
   B. Boiling
   C. Filtration (through gravity sand filter)
   D. Addition of lime

10. Dense soda ash used in the manufacture of glass, is chemically represented by__________________?

    A. Na2CO3
    B. Na2CO3.10H2O
    C. Na2CO3.H2O
    D. Na2HCO3