Question # 1

Which of the following is not a component of a gas chromatography system.

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Carrier gas

Capillary column

Packed column

Cathode lamp

Which of the following salt is water insoluble.

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K2SO4

Na2SO4

BaSO4

None of abvoe

Beer's law is followed in

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Flame photometry

Atomic absorption spectrophotometry

Mass spectrometry

Potentiometry

The property associated in thermometric tittration is

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Change in weight

Rate of change in weight

Heat evolved or absorbed

Change in temperature

Which of the following source is commonly used as excitation source in fluorimeter.

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Tungsten lamp

Mercury vapour lamp

Nernst vapur lamp

Radio souse

Suppose a sample is analyzed for a particular constituent by two different method One can tell whether the two average values are significantly different by applying which of the following test.

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Student's test

F test

Chi square test

Variance

An indicator for an acid base titration is a

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Weak acid

Weak base

Strong acid

Strong base

Both A and B

Which of the following techniques is used for cleanup of samples prior to introduction into chromatographic column.

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Paper chromatography

TLC

Solvnent extraction

Solid phase extraction

Both C and D

Which of the following species is not a basic radical.

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Ag+

Cl-

Ba2+

K+

A well packed column may hve

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100 plates /m

1000 plates /m

10 plates /m

10,000 plates/m

The branch of chemistry which deals with the analysis of chemical products is known as.

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Physical chemistry

Organic chemistry

Inorganic chemistry

Analytical chemistry

Which of the following allows charge transfer through the solution but prevents mixing of the solution.

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Anode

Cathode

Electrode cell

Salt bridge

Which of the following adsorption indicator is used for any of the halides at pH.

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Fluorescein

Eosin

Thorin

Rhodamine 6 G

Which of the following electrode is normally used as reference electrode for a potentiometer.

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Platinum electrode

Calomel electrrode

Silver electrode

Copper electrode

Which of the following anionic species is not separated by gravimetric analysis.

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Cl-

SO4

CH3COO-

PO4

The emission of light characteristics of metal and correlation of intensity of the light emitted with concentration of that metal forms the basis of.

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Roman spectroscopy

IR spectroscopy

Flame photometry

Rotational spectroscopy

Which of the following acid radical gives chromyl chorate test.

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F-

I-

Cl-

Br-

Which of the following technique is based on deposition of the analyte at appropriate electrode by the passage of the electric current.

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Chromatography

Dialysis

Electrodeposition

Solvent extraction

Which of the following radical is not a member of III group

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Al³⁺

Fe²⁺

Ca²⁺

Fe³⁺

Which of the following species is very good oxidizing agent.

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MnO₄

H+

Zn²⁺

Fe³⁺

Which of the following extract is used for wet tests of acid radicals.

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Calcium carbonate extract

Sodium iodide extract

Sodium carbonate extract

Ammonium carbonate extract

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