Question # 1

The point at which the reaction is observed to be complete is called.

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The equivalence point

The end point

The triplet point

The equilibrium point

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 technique is not related to instrumental analysis.

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Optical method

Colorimetry

Polarography

Gravimetric analysis

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

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 hydroxide is getatinous in nature.

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Fe(OH)3

Al(OH)3

Ca(OH)3

Cr (OH)3

Coulometry is based on the measurement of

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Electrical current

Electrical potential

Electrical conductance

Dielectric constant

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 analytical method is based on scattering of radiation.

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Emission spectroscopy

Colorimetry

Turbidimetry

Polarimetry

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

Which of the following techniques involve gas as the mobile phase.

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HPLC

GLC

TLC

Paper chromatography

The number of bonds formed by the central atom is called its.

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Valence number

Complex number

Coordination number

Avogadro's number

Which of the following physical property forms the basis of radio chemicals methods of analysis.

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Absorption of light

Emission of light

Radioactivity

Thermal conductivity

The pH of 0.01 N NaOH is.

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12

13

14

11

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

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NH3

CH3COOH

EDTA

CN-

The term accuracy refers to how near the observed value is to.

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Mean value

Low value

True value

Standard value

Both C and D

In reverse phase chromatography which of the analyte will be eluted more readily.

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Polar

Non polar

Semi polar

All above

The oxidation number of Mn in KMnO4

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+5

+7

+4

+3

The number 7.65 is rounded to.

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7.6

7.7

7.5

7.8

The number of significance figures in the number 80.7 is.

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1

2

3

4

Which of the following range is correct for macro analysis.

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Minimum 100 mg

Minimum 10 mg

Minimum 1 mg

Minimum 1000 mg

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