- (A) Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action
- (B) Soap powder is prepared by mixing soap with hydrated sodium carbonate
- (C) Detergents differ from soaps in their action in hard water
- (D) Tarnish inhibitor (
- (E) g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc
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- (A) Increases
- (B) Decreases
- (C) Remains unchanged
- (D) Decreases exponentially
- (A) Decreases
- (B) Increases
- (C) Remains unchanged
- (D) None of these
- (A) Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities
- (B) Increases the scale forming tendencies of water
- (C) Is undesirable
- (D) All
- (A) Entrainment
- (B) Foaming
- (C) Weeping & dumping
- (D) All
- (A) 25
- (B) > 25
- (C) < 25
- (D) – 25
- (A) Size of component molecules are not equal
- (B) Attractive forces between like and unlike molecules in the solution are approximately equal
- (C) Component molecules are non-polar
- (D) Chemical combination or molecular association between unlike molecules takes place in the formation of solution
- (A) Sherwood number in mass transfer is analogous to Nusselt number in heat transfer
- (B) Prandtl number in heat transfer is analogous to Schmidt number in mass transfer
- (C) Reynolds number in mass transfer is analogous to Grashoff number in heat transfer
- (D) Reynolds number remains the same in both heat and mass transfer
- (A) Drift
- (B) Blow down
- (C) Vapor load
- (D) None of these
- (A) Extractive
- (B) Azeotropic
- (C) Steam
- (D) Molecular
