Question # 1

A minor constant is one whose amount in the sample is

Choose an answer

0.1 to 1 %

0.01 to 1%

1 to 10%

None of the above

Volta metric technique using a dropping mercury electrode is called.

Choose an answer

Amperometry

Coulometry

Polarography

Potentiometry

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

Choose an answer

Al³⁺

Fe²⁺

Ca²⁺

Fe³⁺

Which of the following technique is most sanative one.

Choose an answer

Photomerty

AAS

Flame photometry

Flourimetry

The absorbance is directly proportional to the path length in the flame and to the concentration of atomic vapor in flame is a statement of.

Choose an answer

Lambert's law

Beer's law

Honery's law

Starke law

The current voltage characteristics forms the basis of.

Choose an answer

Thermal analysis

Potentiometry

Polarography

Colorimetry

Yellow colour of the flame is observed with

Choose an answer

Calcium salt

Barium salt

Sodium salt

Potassium salt

Coulometry is based on the measurement of

Choose an answer

Electrical current

Electrical potential

Electrical conductance

Dielectric constant

Which of the following information is correct about a typical packed column in GC.

Choose an answer

10-100 m long and 2 to 6 cm to diameter

1-10 m long and 0.2 to 0.6 cm in diameter

0.1-1 m long and 0.02 to 0.00 cm in diameter

None of the above

Which of the following metal ion cannot be catimated by gravimetric analysis.

Choose an answer

K+

Ca²⁺

Al3+

Zn2+

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

Choose an answer

Chromatography

Dialysis

Electrodeposition

Solvent extraction

A major constituent of materials one whose amount in the materials is

Choose an answer

1% or more

0.1%

0.01%

0.001 %

Which of the following techniques is used for the separation of macromolecules polymers.

Choose an answer

Size exclusion chromatogrphy

TLC

GLC

HPLC

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.

Choose an answer

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

Which of the following analytical technique is based on the refraction of radiation.

Choose an answer

Conductometry

Refractometry

Coulometry

Potentiaometry

The property measured in TGA is

Choose an answer

Change in weight

Rate of change in weight

Heat envolved and absorbed

Change of temperature.

Which of the following cells is used to produce electricity from chemical reaction

Choose an answer

Electroytic cell

Galvanic cell

Voltaic cell

Fuel cell

Both C and D

Which of the following is the best indicator for titration of NH4OH with HCl.

Choose an answer

Methyl red

Methyl orange

Eosin

Phenolphthalein

Which of the following interaction is involved in solid phase extraction technique.

Choose an answer

Van der Waals forces

Dipolar attraction

H bonding

All of above

The technique which involves measurement of the changes in conductance of the solution by employing high frequency alternating current in known as.

Choose an answer

Potentiomerty

Polarography

Oscillometry

Conductomerty

In order to increase the rate of the reaction one should.

Choose an answer

Increase the concentration of products

Decrease the concentration of reactants

Decreases the concentration of products

Both C and D statement are correct

More Classes

Other Links

PPSC Chemistry Part IV Analytical Chemistry Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer