- (A) SO3
- (B) Cl2
- (C) NH3
- (D) SO2
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- (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
- (A) Its calorific value is very less
- (B) Tar neutralises the residual acids present in pitch
- (C) It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop
- (D) All A,
