A. Recovery of product will be difficult
B. Contamination of pure culture would result
C. Uniformity of product cannot be achieved
D. None of these
Related Mcqs:
- Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in______________________?
A. Pyrolysis of oil
B. Sintering of porous catalyst
C. Hydrogen embrittlement
D. All A, B. and C. - Fermentation is adversely affected by the____________________?
A. Presence of air
B. Absence of air
C. High concentration
D. Presence of ammonium salts - Penicillin is made employing _______________ fermentation process?
A. Continuous
B. Aerobic batch
C. Anaerobic batch
D. None of these - Fermentation of molasses to produce ethyl alcohol is done at ________________ °C?
A. 20 – 30
B. < – 5
C. 100 – 150
D. 250 – 300 - Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is ____________ °C?
A. -5 to 0
B. 5 to 10
C. 30 to 50
D. 75 to 80 - At very high concentration of enzymes, the rate of fermentation chemical reaction is _____________ the concentration of reactants?
A. Independent of
B. Directly proportional to
C. Inversely proportional to
D. Proportional to the square of - Production of alcohol by fermentation of molasses is a/an _____________ process?
A. Anaerobic
B. Aerobic
C. Endothermic
D. Both B. and C. - Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is___________________?
A. 0.14
B. 0.34
C. 0.94
D. 1.4 - Lime and soda ash are added to water to remove ___________________?
A. Bicarbonates & sulphates of calcium and magnesium
B. Undesirable taste and odour
C. Bacteria
D. Its corrosiveness - Titanium dioxide is a/an ___________________ colour pigment?
A. White
B. Black
C. Yellow
D. Blue
