Two compounds I and II are eluted by column chromatography (adsorption of `I gt II`). Which one of the following is a correct statement ?

1 Answer

Answer :

Two compounds I and II are eluted by column chromatography (adsorption of `I gt II`). Which one of the ... slower and has higher `R_(f)` value than I

Related questions

Description : What is adsorption in chromatography?

Last Answer : Adsorption chromatography (AC) is chromatographic separation due to energetic interactions between the solute and the surface of the porous packings.

Description : Frequently employed materials for the adsorption chromatography of proteins include (A) High capacity supporting gel (B) Starch blocks (C) Calcium phosphate gel alumina gel and hydroxy apatite (D) All of these

Last Answer : Answer : C

Description : The sorting out of molecules according to size and shape may be adapted to protein purification in this technique: (A) Adsorption chromatography (B) Gel filtration chromatography (C) Paper chromatography (D) None of these

Last Answer : Answer : B

Description :  What is the principle of adsorption chromatography? 

Last Answer : separation is based on differences in adsorption at the surface of a solid stationary medium.

Description : Pick out the wrong statement. (A) With decrease in feed temperature, the number of plates required for binary distillation decreases for a given L/V' ratio (B) The extraction per unit ... and its cross￾section is wider at the bottom (D) Vander wall adsorption is also called chemisorption

Last Answer : (D) Vander wall adsorption is also called chemisorption

Description : Which of the following methods is used for characterization of impurities? A. TLC B. Mass spectroscopy C. Column chromatography D. Potentiometry

Last Answer : B. Mass spectroscopy

Description : Match the compounds give in Column I with the hybridisation an shape given in Column II and mark the correct option. Codes

Last Answer : Match the compounds give in Column I with the hybridisation an shape given in Column II and mark the correct option. Codes ... (A,B,C,D),(4,1,2,3):}`

Description : Give principles behind – i) Crystallization ii) Chromatography

Last Answer : i) impure solid is dissolved in minimum amount of solvent, insoluble impurities are filtered out .solution containing soluble impurities is heated till crystallization point. The crystals of pure substance separate ... is solid the basis is adsorption and when it is liquid the basis is partition.

Description : Match the compounds given in Column-I with the items given in Column - II.

Last Answer : Match the compounds given in Column-I with the items given in Column - II.

Description : Match each of the compounds given in ColumnI with reaction (s) that they can undergo, given in Column II.

Last Answer : Match each of the compounds given in ColumnI with reaction (s) that they can undergo, given in Column II.

Description : All the compounds listed in column I react with water. Match the result of the respective reactions with the appropriate options listed in column II.

Last Answer : All the compounds listed in column I react with water. Match the result of the respective reactions with the appropriate options listed in column II.

Description : Match the compounds listed in column-I with characteristic type of reaction listed in column-II

Last Answer : Match the compounds listed in column-I with characteristic type of reaction listed in column-II

Description : The correct statement(s) pertiaining to the adsorption of a gas on a solid surface is (are)

Last Answer : The correct statement(s) pertiaining to the adsorption of a gas on a solid surface is (are) A. ... it is very slow due to higher energy of activation.

Description : Pick out the correct statement. (A) Angle of repose is always greater than the angle of slide (B) A hopper is a small bin with a sloping bottom (C) A silo is a short height ... used as a 'modifying agent' (for activating or depressing the adsorption of filming agents) in froth floatation process

Last Answer : (B) A hopper is a small bin with a sloping bottom

Description : Solve the following inequalities `(i) |log_(3)x|-log_(3)x-3 lt 0` `(ii)(x-1)/(log_(3)(9-3^(x))-3) le 1` `(iii)log_((x-1)/(x-5))(x-2) gt 0` `(iv) log_(

Last Answer : Solve the following inequalities `(i) |log_(3)x|-log_(3)x-3 lt 0` `(ii)(x-1)/(log_(3)(9-3^(x))-3) le 1` ... gt 0` `(iv) log_(x)(x^(3)-x^(2)-2x) lt 3`

Description : Solve the following inequlities `(i) sqrt(x-1) lt x-3` `(ii) sqrt(x-3) gt sqrt(7-x)` `(iii) sqrt (x^(2)+4x+9) gt x +2` `(iv) 4-x lt sqrt(2x-x^(2))` `(

Last Answer : Solve the following inequlities `(i) sqrt(x-1) lt x-3` `(ii) sqrt(x-3) gt sqrt(7-x)` `(iii) sqrt (x^(2)+4x+ ... (ix) (|x+2|-|x|)/(sqrt(8-x^(3))) ge 0`

Description : Solve the following in equalities `(i) |x+7| gt 5` `(ii) |x+3| lt 10` `(iii) (x+2) lt |x^(2)+3x+5|``(iv) |(2x-1)/(x-1)| gt 2` `(v) |x-6| le x^(2)-5x+9

Last Answer : Solve the following in equalities `(i) |x+7| gt 5` `(ii) |x+3| lt 10` `(iii) (x+2) lt |x^(2)+3x+5|``(iv) ... -5) lt 0` `(viii) |x-1|+|x-2|+|x-3| le 6`

Description : Mention the situations in which following equations will hold true: (i) National Income = Domestice Income (ii) `GDP_(FC) gt GDP_(MP)` (iii) `NNP_(FC)

Last Answer : Mention the situations in which following equations will hold true: (i) National Income = ... ) Domestic Income is greater than National Income.

Description : Which of the syntax is correct for insert statement? i) insert into values ii) insert into (column list) values A) i-only B) ii-only C) Both of them D) None of them

Last Answer : C) Both of them

Description : Statement -I: If `alpha gt beta gt 1`, then `(alpha^(sqrt(log_(alpha)beta)))/(beta^(sqrt(log_(beta)alpha)))` is greater than 1. Statement-2 : `log_(c)

Last Answer : Statement -I: If `alpha gt beta gt 1`, then `(alpha^(sqrt(log_(alpha)beta)))/(beta^(sqrt(log_( ... . D. Statement -1 is false, statement -2 is ture.

Description : A particular adsorption process has the following characteristics : (i) It arises due to vander Waals forces and (ii) it is reversible. Identify the c

Last Answer : A particular adsorption process has the following characteristics : (i) It arises due to vander Waals ... temperature. D. Energy of activation is low.

Description : The following statement relate to the adsorption of gases on a solid surface. Identify the incorrect statement among them :

Last Answer : The following statement relate to the adsorption of gases on a solid surface. Identify the ... are increased D. Entropy of adsorption is negative

Description : Pick out the wrong statement. Generally for physical adsorption, a gas of (A) Higher molecular weight is adsorbed in preference to a gas of low molecular weight (B) High critical temperature ... volatility is adsorbed in preference to a gas of high volatility (D) None of these

Last Answer : (D) None of these

Description : According to Freundlich adsorption isotherm, which of the following is correct ?

Last Answer : According to Freundlich adsorption isotherm, which of the following is correct ? A. `(x)/(m ... the above are correct for different ranges of pressure

Description : For a linear plot of log(x/m) versus log p in a Freundlich adsorption isotherm, which of the following statements is correct ? (k and n are constants)

Last Answer : For a linear plot of log(x/m) versus log p in a Freundlich adsorption isotherm, which of the following ... Both k and 1/n appear in the slope term.

Description : According to Freundlich adsorption isotherm, which of the following is correct?

Last Answer : According to Freundlich adsorption isotherm, which of the following is correct? A. `(x)/(m) ... the above are correct for different ranges of pressure

Description : Which one of the following characteristics is not correct for physical adsorption ?

Last Answer : Which one of the following characteristics is not correct for physical adsorption ? A. ... enthalpy and entropy of adsorption are negative.

Description : Which of the following statements regarding adsorption is/are correct?

Last Answer : Which of the following statements regarding adsorption is/are correct? A. Extent of adsorption ... adsorption is dependent on the nature of adsorbent

Description : Which of the following statements about physical adsorption is correct ?

Last Answer : Which of the following statements about physical adsorption is correct ? A. It is always ... enthalpy of adsorption as compared to chemisorption.

Description : According to Freundlich adsorption isotherm, which of the following is correct?

Last Answer : According to Freundlich adsorption isotherm, which of the following is correct? A. `(x)/(m) ... the above are correct for different ranges of pressure

Description : What is meant by chromatography? -Chemistry 9th

Last Answer : Chromatography is a process for separating components of a mixture. ... The different components of the mixture travel through the stationary phase at different speeds, causing them to separate from one another

Description : Example of locating agents chromatography such as?

Last Answer : Size-exclusion chromatography (SEC) is also known as gel permeation chromatography (GPC) or gel filtration chromatography and separates molecules according to their size (or more accurately according to their ... technique and thus it is often reserved for the final, "polishing" step of a puri

Description : What is Gas Chromatography ( GC) ?

Last Answer : : Gas chromatography ( GC) is a method of identifying and quantifying the components of a mixture. This is done on a commercial gas chromatograph instrument. In gas chromatography a carrier gas ... time and the peak area of the detector signal are used to identify and quantify different components.

Description : What is Chromatography ?

Last Answer : : Chromatography is a method of separating the components of a mixture based on the absorption level or distribution coefficient by placing a mixture in a stationary medium and moving another moving medium in contact with that stationary medium.

Description : What is meant by gas-liquid chromatography ?

Last Answer : Gas-liquid chromatography is a type of partition chromatography , where the moving phase is an inert gas and the stationary phase is a liquid with a high boiling point absorbed on a solid surface. The ... . The components are dissolved due to the splitting of vapor , gas and liquid in the sample .

Description : What is Gas Chromatography ( GC) ?

Last Answer : : Gas chromatography ( GC) is a method of identifying and quantifying the components of a mixture. This is done on a commercial gas chromatograph instrument. In gas chromatography a carrier gas ... time and the peak area of the detector signal are used to identify and quantify different components.

Last Answer : Chromatography Being Scientific Procedure _ _ A The process , of which Through Compound Or Mixed Of matter To the elements Separate To do Is. That Methodically A Carrier Moving To the ... Different Level Divided By Individual , identifiable, Amount Diagnosis To do Is Him Chromatography Says.

Description : $ Process of separation of photosynthetic pigments is called chromatography ! Chromatophore have accessory photosynthetic pigments such as phycocyanin

Last Answer : $ Process of separation of photosynthetic pigments is called chromatography ! Chromatophore have accessory ... If both As and R are wrong.

Description : What is a locating agent in chromatography?

Last Answer : It is a chemical which reveals invisible spots on thechromatogram, e.g. ninhydrin for amino acids.

Description : Why is ethanol used in chromatography?

Last Answer : What is the answer ?

Description : Presence of arginine can be detected by (A) Sakaguchi reaction (B) Million-Nasse reaction (C) Hopkins-Cole reaction (D) Gas chromatography

Last Answer : Answer : A

Description : The movement of charged particles towards one of the electrodes under the influence of electrical current is (A) Gel filtration (B) Molecular sieving (C) Gas liquid chromatography (D) Electrophoresis

Last Answer : Answer : D

Description : The following technique makes use of the difference in net charges of proteins at a given pH: (A) Thin layer chromatography (B) Ion exchange chromatography (C) High performance liquid chromatography (D) Paper chromatography

Last Answer : Answer : B

Description : This technique takes the advantage of the fact that each protein has different pH at which it is electrically neutral i.e., its isoelectric pH: (A) Isoelectric focussing (B) Immunoel Ectro Phoresis (C) Chromatography (D) HPLC

Last Answer : Answer : A

Description : A sharp moving boundary is obtained between the pure solvent and solute containing layer in (A) Chromatography (B) Immuno Reactivity (C) Ultra Centrifugation (D) Solubility curve

Last Answer : Answer :C

Description : The amino acid which gives yellow colour with Ninhydrin in paper chromatography is (A) Tyrosine (B) Proline (C) Tryptophan (D) Alanine

Last Answer : Answer : B

Description : Primary structure of proteins can be determined by the use of (A) Electrophoresis (B) Chromatography (C) Ninhydrin (D) Sanger’s reagent

Last Answer : Answer : D

Description : The technique for purification of proteins that can be made specific for a given protein is (A) Gel filtration chromotography (B) Ion exchange chromatography (C) Electrophoresis (D) Affinity chromatography

Last Answer : Answer : D

Description : Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Last Answer : (3) Auto radiography Explanation: Radioactive elements can be traced out in living cell through a technique called Autoradiography.

Description : Explain the principle of paper chromatography.

Last Answer : Paper chromatography is based on the difference in the rates at which the components of a mixture are adsorbed. The material on which different components are adsorbed is called ... compounds are adsorbed on stationary phase at different rates and separated by differential adsorption method.