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

Which of the following is a thermometric method.

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TGA

DTA

DTG

All

The most widely used method of extracting metal ions is the formation of a chelate molecule with an organic chelating agent The chelating agents are.

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Strong acids

Strong bases

Weak bases

Weak acids

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

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 physical properties is employed int he analytical methods.

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Electric current

Transition temperature

Surface tension

All above

Which of the following detector is used in GC analysis

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Thermal conductivity detector

Flame ionization detector

Mass spectrometer

All above

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

When CH3COOH is titrated against NaOH the pH as the equivalence point is.

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7

> 7

o

>7

6.8

Yellow green flame is observed with

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Calcium salt

Barium salt

Strontium salt

Sodium salt

Which of the following is not a ligand or complexing agent.

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NH3

CH3COOH

EDTA

CN-

Which of the following detector is used for compounds containing electronegative atoms.

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Mass specdtrometer

ECD

TCD

UV-detector

Which of the following analytical method is used for the separation of dissolved components from solutions.

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Chromatography

Dialysis

Solvent extraction

Distillation

Beer's law is followed in

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Flame photometry

Atomic absorption spectrophotometry

Mass spectrometry

Potentiometry

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

An acid base titration involves a neutralization reaction in which an acid is reacted with an equivalent amount of base The titrant is always a strong acid or base The analyte may be

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Strong acid

Strong base

Weak acid and Weak base

All above

Gravimetric method is based on which of the following property.

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Volume of a liquid

Volume of gas

Mass of substance

Viscosity

Which of the following techniques does not belong to column chromatographyy

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TLC

HPLC

Electrophoresis

Ion exchange

Which of the following salt is colourless.

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Zn salt

Co salt

Ni salt

Mn salt

DTA is of great importance in which of the following field

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Ceramic

Metallurgy

Mineralogy

All

Which of the following steps is not involved in chemical analysis.

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Separation of sample in pure form

Separation of the sample in the mixture form

Preparation of sample for the analyisis

Validity of experimental results

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