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

View solution

Q. 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.

View solution

Q. Raoult’s law is when mole fraction approaches zero and Henry’s law is applicable when concentration approaches zero.

View solution

Q. Ethanol-water mixture is a popular example of a mixture exhibiting the typical VLE curve.

View solution

Q. Statement 1: Boiling point concentration diagram plots y against x. (Mole fraction in gas and liquid phase respectively).
Statement 2: VLE curve plots y against x. (Mole fraction in gas and liquid phase respectively).

View solution

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

View solution

Q. When a system doesn’t obey Raoult’s law, the relative volatility is the ratio of the Henry’s constants for the two systems.

View solution

Q. Liquid-liquid extraction is called leaching.

View solution

Q. If extraction is done at the _____ of the solvent, it is called _____

View solution

Q. Statement 1: Soya bean has a high oil content.
Statement 2: If the oil content is high, extraction is done by solvent extraction alone.

View solution

Q. Oil seed cakes are obtained by _____

View solution

Q. Statement 1: Partition coefficient pertains to solid-liquid extraction.
Statement 2: Leaching involves both heat and mass transfer.

View solution

Q. Which among the following factors does NOT affect extraction?

View solution

Q. Multi-stage counter-current extraction is expensive as more extractors are needed to strip the solid off the solvent.

View solution

Q. Statement 1: Multi-stage cross-current extraction – the solids contain some amount of solute after every extraction.
Statement 2: Single-stage batch extractor – Used in labs and not on large scale as a solvent is continuously subjected to heat.

View solution

Q. _____ is the diagonal of the x-y diagram.

View solution

Q. 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.

View solution

Q. Which of the following operations is carried out by extraction equipment?

View solution

Q. A multi stage continuous counter-current extractor has the advantages of both co and counter current processes.

View solution

Q. After extraction via solvent extraction, the cake serves to be a good source of _____

View solution