Question # 1

When a solute is dissolved in two immiscible solvents it will distributes itself between two phases and the ratio of the concentration of the solute in two phases will be constant, This is known as.

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Starke law

Distribution law

Equilibrium law

Snell's law

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 species is very good oxidizing agent.

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MnO₄

H+

Zn²⁺

Fe³⁺

Which of the following technique is based on the absorption of light radiation.

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Spectrophotomerty

Colorimetry

NMR

All the above technique

In DTA , theriac effect may be exothermic of endothermic These are cause by

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Fusion

Crystal structure inversion

Destruction of crystal lattice

All of above

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.

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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

NH4OH in the presence of H2S is used as a group reagent for which of the following group.

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Group I

Group II

Group III

Group IV

Which of the following is a thermometric method.

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TGA

DTA

DTG

All

Which of the following statement is not related with the advantages of TLC.

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A variety of adsorbents can be used

The thickness of adsorbent can be varied

Fluorescence can be introduced

Different detectors can be used

Which of the following method is based on the solubility difference between the analyte and the unwanted components.

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Distillation

Complex formation

Electrodepostion

Precipitation

Complexing reactions are useful for which of the following method of analysis

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Gravimetry

Spectrophotometry

Interfering ions masking

All of the above

The pH of 0.001 N HCl is

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1

2

3

4

Which of the following is not a component of flame photometer.

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Pressure regulator and flow meter

The atomizer

The burner

Hallow cathode lamp

Which of the following analytical technique is based on the emission of light radiation.

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Flame photometry

Atomic absorption spectrophotometry

Raman spectroscopy

Conductometry

Which of the following functional groups is not involved in ion exchange chromatography.

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Weak acids

Strong acids

Strong bases

Carbohydrates

Which of the following is not an adsorption indicator.

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Eosin

Bromocrsol green

Fluorescein

Phenolphthalein

Deviation in a particular measurement is the difference between the measured value and the average value The arithmetic mean of the different deviations observed in several measurements of the same quantity is known as.

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The standard deviation

The average deviation

Relative mean deviation

variance

The relative error is usually expressed as

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Parts per ten

Parts per one

Parts per hundred

Botha C and D

Yellow colour of the flame is observed with

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Calcium salt

Barium salt

Sodium salt

Potassium salt

Which of the following salt is not used in salt bridge to minimize liquids junction potential.

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KCl

NH4Cl

KNO3

CaCl2

Which of the following is not a redox indicator.

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Ferroin

Diphaylamine

Phenolphthalein

Methyl blue

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