Statement 1: Vapour-liquid-Equilibria is related to by a simple expression of Raoult’s law. Statement 2: Raoult’s law is applicable to real gases.

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Statement 1: Hydrogenation of fats involves liquid-gas phases only. Statement 2: Hydrogenation of fats is known as slurry reactor system.

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Statement 1: In counter-current extraction, equilibrium is reached at every stage. Statement 2: Right angled triangle method also called a difference point method is used to calculate the ideal number of stages for extraction.

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Statement 1: Batch crystallizers are used for jaggery. Statement 2: Particle size is controlled by stirring and scraping the concentrate from the vessel for better heat transfer.

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Statement 1: Caffeine is the active principle in coffee. It cannot be stripped off it. Statement 2: Caffeine can be stripped off coffee by extraction.

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Statement 1: The solubility of NaCl increases with the increase in temperature. Statement 2: Crystal formation is hindered by nucleation taking place on the crystal surface.

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Statement 1: Filter cake increases the efficiency of filtration. Statement 2: Filter aid is added to the filter cake when the filter cake is the desired product.

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Statement 1: Presence of certain organic solvents in solvent extraction can prove to be carcinogenic. Statement 2: CO2 gas can be used in super critical fluid extraction.

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Statement 1: Smaller particles dissolve as they have a larger surface area and larger particles grow. Statement 2: The above process is called Ostwald ripening.

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Statement 1: Continuous Rotary vacuum filter press has a high labor cost. Statement 2: Continuous Rotary vacuum filter press has a high clogging.

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Statement 1: Bubble point means the feed is at saturated vapor. Statement 2: Dew point means the feed is at boiling point.

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Statement 1: Batch crystallizers are used if the throughput is high. Statement 2: The operating cost of batch crystallizers is high.

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Statement 1: Batch distillation is used for small capacity operations. Statement 2: In food processing, batch distillation is used for desolventization.

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