A. -5 to 0
B. 5 to 10
C. 30 to 50
D. 75 to 80
Related Mcqs:
- ____________ are used as corrosion inhibitor for iron & steel in aqueous solutions ?
A. Phosphates
B. Chromates
C. Sulphates
D. Bi-carbonates - 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 - Air used in aerobic fermentation must be sterilized, otherwise the ___________________?
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 - Fermentation of molasses to produce ethyl alcohol is done at ________________ °C?
A. 20 – 30
B. < – 5
C. 100 – 150
D. 250 – 300 - 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. - Enzymes are organic catalysts used in the ____________________ reactions ?
A. Chemical
B. Biochemical
C. Photochemical
D. Electrochemical - Molecular weights of polymers are in the range of__________________ ?
A. 102 – 102
B. 105 – 109
C. 102 – 107
D. 109 – 1011 - Common salt is generally not produced commonly by ________________ method from brine ?
A. Freeze drying
B. Electrolytic
C. Solar evaporation
D. Vacuum evaporation
