Tea percolation employs (A) Liquid-liquid extraction(B) Leaching(C) Absorption(D) None of these

Tea percolation employs

(A) Liquid-liquid extraction

(B) Leaching

(C) Absorption

(D) None of these

by

1 Answer

Answer :

(B) Leaching

by

Related questions

Bollman extractor (A) Is a static bed leaching equipment (B) Is used for extraction of oil from oilseed (C) Is a centrifugal extractor (D) Employs only counter-current extraction

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Last Answer : (B) Is used for extraction of oil from oilseed

Steady state equimolal counter diffusion occurs in case of (A) Leaching (B) Absorption (C) Binary phase distillation (D) Liquid-liquid extraction

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Leaching of coarse solid lumps is also termed as(A) Decoction (B) Dissolution (C) Percolation (D) Agitation and settling

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Extraction of coffee from its seed is done by (A) Liquid-liquid extraction (B) Leaching (C) Extractive distillation (D) Steam distillation

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The transfer of minerals from top soil to subsoil through soil-water is called? (1) Percolation (2) Conduction (3) Leaching (4) Transpiration

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The transfer of minerals from top soil to subsoil through soil-water is called? (1) Percolation (2) Conduction (3) Leaching (4) Transpiration

Description : The transfer of minerals from top soil to subsoil through soil-water is called? (1) Percolation (2) Conduction (3) Leaching (4) Transpiration

Last Answer : (3) Leaching Explanation: Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.

The transfer of minerals from top soil to subsoil through soil-water is called? (1) Percolation (2) Conduction (3) Leaching (4) Transpiration

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Define extraction and explain reserve percolation process.

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Degree of freedom for leaching and solvent extraction process is (A) 0 (B) 1 (C) 2 (D) 3

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With increase in temperature, the rate of extraction in leaching (solid￾liquid extraction system). (A) Increases (B) Decreases (C) Remain unaffected (D) Increases Linearly

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Separation of the isotopes of helium for scientific investigations is done by (A) Reverse osmosis (B) Thermal diffusion (C) Leaching (D) Solvent extraction

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Last Answer : (B) Thermal diffusion

For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates. (A) Binary mixture is represented by the apex (B) Binary mixture is represented by any point inside (C) Ternary mixture is represented by the sides (D) Pure component is represented by the apex

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Last Answer : (B) Butyl alcohol

Essential oils are usually obtained using (A) Steam distillation (B) Extractive distillation (C) Solvent extraction (D) Leaching

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Last Answer : (D) Leaching

Extraction of penicillin employs a __________ extraction column. (A) Centrifugal (B) Packed (C) Plate (D) None of these

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Fractional solvent extraction (A) Employs only one solvent (B) Employs two solvents (C) Results in low interfacial tension (D) None of these

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Which of the following unit operations makes use of Thiele-Geddes equation? (A) Liquid-liquid extraction (B) Solid-liquid extraction (C) Multi-component absorption with chemical reaction (D) Multi-component distillation

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Last Answer : (D) Multi-component distillation

Separation of two or more components of a liquid solution cannot beachieved by (A) Fractional crystallisation (B) Liquid extraction (C) Absorption (D) Evaporation

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Last Answer : (C) Absorption

Heat sensitive materials with very high latent heat of vaporisation may be economically separated using (A) Liquid extraction (B) Distillation (C) Evaporation (D) Absorption

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Langmuir equation is associated with (A) Leaching (B) Adsorption (C) Steam distillation (D) Multi-component absorption

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Statement-1: Extraction of gold from its native ore involves leaching the metal wih dilute solution of NaCN in presence of air. Statement-2:This is an

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Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the (A) Coagulation (B) Flocculation (C) Sedimentation (D) Clarification

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In which of the following unit operations, the selectivity is an important parameter? (A) Distillation (B) Solvent extraction (C) Absorption (D) None of these

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The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called (A) Decoction (B) Percolation (C) Elutriation or elution (D) None of these

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Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatization by liquid SO2 extraction (Edeleanu process), its smoke point may become __________ mm. (A) 5 (B) 10 (C) 25 (D) 100

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Solvent used in duo-sol extraction for lube oil upgradation is a mixture of (A) Propane & phenol-cresol mixture(B) Methyl ethyl ketone & glycol(C) Phenol & furfural(D) Propane & liquid sulphur dioxide

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Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to (A) Increase its smoke point (B) Improve its oxidation stability (C) Decrease the breathing loss (D) None of these

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The rate of solid-liquid extraction is limited by the (A) Phase change of the solute as it dissolves in the solvent (B) Diffusion of the solute through the solvent in the pores to the outside of the particle (C) Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution (D) All 'a', 'b' & 'c'

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Last Answer : (D) All 'a', 'b' & 'c'

Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when (A) Extracting solvent is cheaply & abundantly available (B) One of the liquid components is heat sensitive (C) Viscosity of liquid components is very high (D) One of the liquid components has very high affinity towards the solvent

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Pick out the correct statement. (A) In case of liquid-liquid extraction, no separation is possible, if the selectivity of the solvent used is unity (B) With increase in temperature, the selectivity of the solvent used in solvent extraction decreases (C) The selectivity of solvent used in solvent extraction is unity at the plait point (D) All (A), (B) and (C)

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Which of the following equipments is not used in liquid-liquid extraction? (A) Pachuka tank (B) Agitated vessels (C) Centrifugal extractors (D) Packed towers

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Last Answer : (A) Pachuka tank

Pick out the wrong statement. (A) Critical moisture content is not a property of the material itself (B) A sharp increase in pressure drop gives an indication of the flooding in a distillation column (C) Separation of components is not possible in liquid extraction, if selectivity is unity (D) Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum

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In liquid-liquid extraction, the number of phases at plait point is (A) 1 (B) 2 (C) 3 (D) 4

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Last Answer : (A) 1

The solvent used in liquid-liquid extraction should have __________ less than one. (A) Selectivity (B) Distribution co-efficient(C) Both (A) and (B)(D) Neither (A) nor (B)

Description : The solvent used in liquid-liquid extraction should have __________ less than one. (A) Selectivity (B) Distribution co-efficient (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (D) Neither (A) nor (B)