A. 25°C, 2 atm
B. 50°C, l0 atm
C. 30°C, 200 mm Hg (absolute)
D. 90°C, 45 atm
A. Bicarbonates & sulphates of calcium and magnesium
B. Undesirable taste and odour
C. Bacteria
D. Its corrosiveness
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
A. As a lubricant
B. As a rust preventive
C. In hard water for cleaning of cloth
D. As a foam depressant in distillation column
A. FeO.TiO2
B. Ca SO4 . 2H2O
C. Fe4 [Fe (CN6)3]
D. AlF3 . 3NaF
A. Alcohol
B. Essential oil
C. Fatty acids
D. Massecuite
A. Anti-malarial
B. Anti-TB
C. Antibiotic
D. None of these
A. Can use low grade brine
B. Has less corrosion problems
C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl
D. Both B. and C.
A. Dilute H2SO4
B. Oleum
C. Ultraviolet light
D. None of these
A. 45
B. 70
C. 95
D. 99.5