Question # 1

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 acid radical is not interfering.

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Phosphate

Borate

Flouride

Sulphate

Which of the following factor is involved in band boarding that occur in column chromatography.

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Number of theoretical plates

Eddy diffusion

In phase mass transfer

All above

Which of the following sulphide is yellow in colour.

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HgS

PbS

CdS

SnS

Volta metric technique using a dropping mercury electrode is called.

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Amperometry

Coulometry

Polarography

Potentiometry

Which of the following is not a physical test.

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Colour test

Flame test

Beed test

Wet test

Which of the following species is very good oxidizing agent.

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MnO₄

H+

Zn²⁺

Fe³⁺

Which of the following method is used to separate small molecules form the larges molecules from the larger molecules in diffusing through a membrane.

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Dialysis

HPLC

FPLC

TLC

The process of determining amounts of each of the components in a sample of matter is termed as.

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Gravimetric analysis

Coulometric analysis

Quantitative analysis

Qualitative analysis

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 technique is used for separation of volatile components.

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GC

HPLC

FPLC

TLC

Which of the following is not an adsorption indicator.

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Eosin

Bromocrsol green

Fluorescein

Phenolphthalein

Which of the following technique is most sanative one.

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Photomerty

AAS

Flame photometry

Flourimetry

A well packed column may hve

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100 plates /m

1000 plates /m

10 plates /m

10,000 plates/m

Which of the following technique describes titrations in which a standard iodine solution is need.

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Iodometry

Iodimetry

potentiometry

Argentometry

Coulometry is based on the measurement of

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Electrical current

Electrical potential

Electrical conductance

Dielectric constant

The theoretical plate in chromatography is represented by how many equilibrium step

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One

Two

Three

Four

Which of the following gas is not used as carrier gas in GC.

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Argon

Nitrogen

Helium

CO2

Which of the following steps is involved in quantitative analysis.

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Sampling

Conversion of the desired constituent into a suitable form per analysis.

Measurement of some physical or chemicals property, on which the determination is based.

All above steps

Which of the following acid radical give organic layer test.

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Cl-

CO3

I

S^2-

The current voltage characteristics forms the basis of.

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Thermal analysis

Potentiometry

Polarography

Colorimetry

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