PPSC Chemistry Part IV Analytical Chemistry Online Test With Answers

PPSC Chemistry Part IV Analytical Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following techniques is used to separate a mixture of cations. GC FPLC Ion exchange chromatography Size exchange chromatography
2 Which of the following techniques is used for the separation of macromolecules polymers. Size exclusion chromatogrphy TLC GLC HPLC
3 Which of the following technique is used for separation of volatile components. GC HPLC FPLC TLC
4 Which of the following factor is involved in band boarding that occur in column chromatography. Number of theoretical plates Eddy diffusion In phase mass transfer All above
5 The plate height is the length of the column divide by Length of the column Width of the column Number of theoretical plates Number of components of the mixture.
6 The theoretical plate in chromatography is represented by how many equilibrium step One Two Three Four
7 The separation efficiency of a column can be expressed in terms of number of. Solvents used Theoretical plates Stationary phases Mobile phases
8 Which of the following techniques involve gas as the mobile phase. HPLC GLC TLC Paper chromatography
9 In which of the following techniques the solvated molecules are separated according to their size by their ability to penetrate a sieve like structure. Adsorption chromatography Partition chromatography Ion exchange chromatography Gel permeation chromatography
10 Which of the following techniques involves ion exchange phenomenon. Size exclusion chromatography Ion exchange chromatography GLC HPLC
11 In reverse phase chromatography which of the analyte will be eluted more readily. Polar Non polar Semi polar All above
12 In reverse phase chromatography which of the analyte will be retained more on the stationary phase. Semi polar Non polar Polar None of the above
13 In normal mode of operations of liquid liquid partition, a polar stationary phase is used with a non polar mobile phase Which of the following solvent is used as mobile phase. Ethanol Propanol Butanol Hexane
14 TLC belongs to which of the following chromatographic techniques. Ion exchange Partities chromatography Adsorption chromatography Gel permeation
15 Which of the following basic process is involved in the separation of the complex mixture by chromatographic techique. Partition Adsorptions Ion exchange All of the above processes
16 Which of the following techniques does not belong to column chromatographyy TLC HPLC Electrophoresis Ion exchange
17 The chemical method of separation in which the analytes to be separated are distributed between two phases, one of which is stationary phase while the other moves in a definite direction This technique is known as. Electrophoreals Chromatography Solvent extraction Catachreals
18 Solid phase micro extraction is a solvent less extraction technique This technique is used for preparation of samples for analysis by which of the following technique. HPLC GC TLC Electrophoreals
19 Beside the common silica based SPE particles, polymer supports are also available They have advantages over silica based SPE particles, Which of the following reason is possible. These are stable over a wide pH range. These do not possesses residual silica groups These are designed to be wettable and have high capacity than silica base particles. All above
20 Which of the following extractant is used to solid phase extraction Bonding of C18 chains on silica Bonding of C20 on paper Bonding of C18 on glass Bonding of C20 on cellulose
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