The process employing desorption of the absorbed solute by a solvent is called (A) Elution (B) Osmosis (C) Reverse osmosis (D) Sublimation

The process employing desorption of the absorbed solute by a solvent is

called

(A) Elution

(B) Osmosis

(C) Reverse osmosis

(D) Sublimation

by

1 Answer

Answer :

(A) Elution


by

Related questions

Pick out the wrong statement: (A) Change in barometric pressure does not affect the relative humidity (B) In case of a packed tower, the operating velocity is about half of the flooding velocity, generally (C) 'Elution' means the desorption of the adsorbed solute by a solvent (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity

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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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Last Answer : (C) Elutriation or elution

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

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

Last Answer : (B) Thermal diffusion

For a heterogeneous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is (A) Surface Kc /(1 + TS ) reaction between absorbed A and B in the gas phase (B) Surface reaction between absorbed A and absorbed B (C) Surface reaction between A in the gas phase and absorbed B(D) Desorption of C

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Last Answer : (B) 8.89

Brackish water which contains mostly dissolved salt, can be purified by the __________ process. (A) Reverse osmosis (B) Sand filter(C) Lime soda(D) Permutit

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In plants water is absorbed by the root hairs by a process called: (1) Transpiration (2) Respiration (3) Perspiration (4) Osmosis

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In plants water is absorbed by the root hairs by a process called: (1) Transpiration (2) Respiration (3) Perspiration (4) Osmosis

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Pick out the wrong statement. (A) 'Solvates' are chemical compounds formed by solute with their solvents. When water is the solvent, then it is called a 'hydrate' (B) In heat exchanger calculations (Δt) weighted is used in place of Δt, when it involves more than one sequence of heating or cooling i.e., desuperheating & condensation or condensation & sub-cooling (C) Heat transfer co-efficient during nucleate boiling is not influenced by the agitation imparted (D) In case of short tube vertical evaporators, area of central downtake is about 50 to 100% of the total tube cross-sectional area

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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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On addition of solute in the solvent, the __________ of the solution decreases. (A) Boiling point (B) Freezing point (C) Vapour pressure (D) Both (B) and (C)

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. In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is (A) 0.50 (B) 0.60 (C) 1 (D) 2

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Last Answer : (A) 0.50

Molarity is defined as the number of gm moles of solute per __________ of solvent. (A) Litre (B) kg (C) gm (D) c.c

Description : Molarity is defined as the number of gm moles of solute per __________ of solvent. (A) Litre (B) kg (C) gm (D) c.c

Last Answer : (A) Litre

When the solvent dissolves very little of solute, then (A) Solvent of low latent heat of vaporisation should be used (B) Solvent of low freezing point should be used (C) Large quantity of solvent is required to extract the solute (D) Very small quantity of solvent is required

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Last Answer : (C) Large quantity of solvent is required to extract the solute

With increase in temperature, the rate of leaching increases, because the (A) Diffusivity of solute increases (B) Viscosity of solvent decreases (C) Thermal conductivity of solute increases (D) None of these

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Last Answer : (A) Diffusivity of solute increases

The individual mass transfer co-efficients (moles/m2s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling? (A) Liquid side (B) Gas side (C) Interfacial (D) Both liquid and gas side

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Molality is defined as the number of gm moles of solute per __________ of solvent. (A) Litre (B) gm (C) Kg (D) m

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A process in which substances are separated throug differences in the rates at which the components migrate is called: w) filtration x) chromatography y) elution z) titration

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Last Answer : ANSWER: X -- CHROMATOGRAPHY

The process used in the desalination of sea water is (a) osmosis (b) reverse osmosis (c) electrophoresis (d) distillation

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Differentiate between reverse osmosis membrane process with ultra filtration membrane

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Principle of reverse osmosis process

Description : Principle of reverse osmosis process

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A unit operation is exemplified by the process of (A) Reduction (B) Desorption (C) Nitration (D) Combustion

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Sodium vapour lamps glow with yellow colour. This is due to - (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

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Last Answer : (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Explanation: Sodium Vapour Lamps glow with yellow colour due to the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum.

The heat absorbed by a unit mass of a material at its holding point in order to convert the material into a gas at the same temperature.  a. Latent Heat of Sublimation  b. Latent Heat of Vaporization  c. Latent Heat of Fusion  d. Latent Heat Of Condensation

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Last Answer : Latent Heat of Vaporization

Sodium vapour lamps glow with yellow colour. This is due to (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

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Last Answer : the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum

The number of moles of solute present in 1 kg of a solvent is called its (a) Molality (b) Molarity (c) Normality (d) Formality

Description : The number of moles of solute present in 1 kg of a solvent is called its (a) Molality (b) Molarity (c) Normality (d) Formality

Last Answer : Ans:(a)

(1) a homogeneous mixture of two or more substances Explanation: A homogeneous mixture of two or more substances uniformly dispersed throughout a single phase is called solution. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. The solution more or less takes on the characteristics of the solvent including its phase, and the solvent is commonly the major fraction of the mixture.

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Last Answer : Choose the incorrect statement pertaining to organic compounds - (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen

The number of moles of solute present in 1 kg of a solvent is called its?

Description : The number of moles of solute present in 1 kg of a solvent is called its?

Last Answer : molality

Number of gram of solute per 1000 gm of solvent is called a. Normal solution b. Molar solution c. molal solution d. simple solution

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Last Answer : molal solution

Reverse osmosis is also called (A) Dialysis (B) Electrodialysis (C) Diffusion (D) Ultra-filtration

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During osmosis w) Pure solvent diffuses through a membrane but solutes do not. x) Pure solutes diffuse through a membrane but solvent does not. y) Pure solvent and a solution both diffuse at the same time through a membrane. z) Gases diffuse through a membrane into a solution and build up pressure.

Description : During osmosis w) Pure solvent diffuses through a membrane but solutes do not. x) Pure solutes diffuse through a membrane but solvent does not. y) Pure solvent and a solution both diffuse at the same time through a membrane. z) Gases diffuse through a membrane into a solution and build up pressure. 

Last Answer : ANSWER: W -- PURE SOLVENT DIFFUSES THROUGH A MEMBRANE BUT SOLUTES DO NOT. 

In osmosis the flow of SOLVENT moves in what direction of tonicity? a) isotonic to hypotonic b) hypotonic to hypertonic c) hypertonic to isotonic d) hypertonic to hypotonic

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Last Answer : ANSWER: B -- HYPOTONIC TO HYPERTONIC 

What is the difference between a solvent and a solute?

Description : What is the difference between a solvent and a solute?

Last Answer : Answer: A solvent is a substance that dissolves another substance, called a solute, to form a homogeneous mixture. The solvent is typically present in the greater amount, while the solute is present in the ... in a solution of sugar dissolved in water, water is the solvent and sugar is the solute.

What is the difference between a solute and a solvent?

Description : What is the difference between a solute and a solvent?

Last Answer : A: A solute is a substance that is dissolved in a solvent, while a solvent is a substance that dissolves the solute.

13.a) What is solute and solvent in aerated drinks? b) Given a solution of substance 'A' how will you test whether it is saturated or unsaturated with respect to 'A' at the given temperature. -Chemistry

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Last Answer : (a) No solute and solvent is available in aerated drinks. (b) in the given solution add small amount of solute A, if A dissolved a daydream a transparent solution is formed then it is an unsaturated solution and if A doesn't dissolved and a precipitate is formed then it's a saturated solution

$ Both the solute and solvent can pass through a semipermeable membrane. ! A semipermeable membrane is always living.

Description : $ Both the solute and solvent can pass through a semipermeable membrane. ! A semipermeable membrane is always living.

Last Answer : $ Both the solute and solvent can pass through a semipermeable membrane. ! A semipermeable membrane is always ... D. If both As and R are wrong.

Is Cigarette smoke is solvent or solute?

Description : Is Cigarette smoke is solvent or solute?

Last Answer : Smoke is a solute. It can be dissolved.

What is the solute and solvent smoke?

Description : What is the solute and solvent smoke?

Last Answer : Smoke is NOT a solution, it is a mixture (because the smoke youcan see is particulate and will settle out).

What Solute and solvent of tang?

Description : What Solute and solvent of tang?

Last Answer : joe

What are the solute and solvent in cheese?

Description : What are the solute and solvent in cheese?

Last Answer : Cheese is not a solution.

What is the Name the solute and solvent in foam?

Description : What is the Name the solute and solvent in foam?

Last Answer : There is really no answer to your question . . . foam can beproduced by a variety of liquids, each having the potential to havedifferent solvents and solutes.

What is the name of solute and solvent in smoke?

Description : What is the name of solute and solvent in smoke?

Last Answer : The solvent is air; the solute are the particles of smoke.

What are solute and solvent in smoke?

Description : What are solute and solvent in smoke?

Last Answer : Smoke is not a solution, it is a colloidal suspension of veryfine particles in air.

What is the solute and solvent for gold ring?

Description : What is the solute and solvent for gold ring?

Last Answer : gold ring solute or solvent

What is the solvent and solute of butter?

Description : What is the solvent and solute of butter?

Last Answer : Butter is a water in oil emulsion.

What are the solvent and solute in a solution containing 100 g of ethanol and 3 g of sucrose?

Description : What are the solvent and solute in a solution containing 100 g of ethanol and 3 g of sucrose?

Last Answer : Feel Free to Answer

How the solute and solvent in cheese?

Description : How the solute and solvent in cheese?

Last Answer : Feel Free to Answer