ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

Question # 1

Which one of the following substance is no used as drying agent in desiccators

Silica gel A
CaCl₂ B
Phosphorous C
NaCL(50%) D

Question # 2

The sample being analyzed is called:

Electrolyte A
Residue B
Undue C
Filtrate D

Question # 3

Selection of filter paper depends upon sizes of particles to be :

Tested. A
Filtered. B
Checked. C
All of above. D

Question # 4

The liquid obtained after passing the mixture through filter paper is termed as:

Extract A
Residue B
Filtrate C
Sample D

Question # 5

Solvent extraction is an unstable,Process and it is controlled by:

Alcohol extraction A
Petrol extraction B
Phenol extraction C
Ether extraction D

Question # 6

The solid remained on filter paper during the filtration is called the :

Substance. A
Residue. B
Undue. C
Filtrate. D

Question # 7

The detection of functional group is called

Numerical analysis A
Qualitative analysis B
Combustion analysis C
Quantitative analysis D

Question # 8

Identification of a substance, determination of its structure and quantitative analysis of its composition are the aspects covered by

Modern analytical physics A
Mechanical chemistry B
Biochemistry C
Modern analytical chemistry D

Question # 9

Solvent extraction method is a particularly useful technique of separation when the product to be separated is:

non-volatile or thermally unstable. A
volatile or thermally stable. B
non-volatile or thermally stable. C
volatile or thermally unstable. D

Question # 10

A complete chemical characterization of a compound must include

Qualitative analysis A
Chemical analysis B
Quantitative analysis C
Both a and c D

Question # 11

The apex angle of the folded filter paper is slightly greater than :

60°
A
30° B
45° C
90° D

Question # 12

Proteins and amino acid can be separated by:

Filtration A
^Sublimation B
Chromatography C
Suction D

Question # 13

Selection of filter paper depends upon sizes of particles to be:

Tested A
^Filtered B
Checked C
All of above D

Question # 14

Solvent extraction is an equilibrium process and it is controlled by :

law of mass action. A
the amount of solvent used. B
distribution law. C
the amount of solute. D

Question # 15

The sample being analyzed is called

Electrolyte A
Substance B
Analyte C
All of above D

Question # 16

Solvent extraction is an unstable, Process and it is called by:

The amount of solute A
Distribution law B
The amount of solvent used C
Law of mass action D

Question # 17

Fluted filter paper is used to:

Decrease rate of filtration A
Increase rate of filtration B
Maintain rate of filtration C
None of above D

Question # 18

95% ethanol is called :

Rectified ether. A
Diesel. B
Rectified spirit. C
Petrol. D

Question # 19

Fluted filter paper is used to :

Decrease rate of filtration. A
Increase rate of filtration. B
Maintain rate of filtration. C
None of above. D

Question # 20

The filtration process is used to to separate solid from :

Liquid. A
Gas. B
Solid. C
All of above. D

Question # 21

Analytical chemistry is the science of :

Chemical Characterization. A
Physical Characterization. B
Biological Characterization. C
Biochemical Characterization. D

Question # 22

95% ethanol is called:

Rectified other A
Diesel B
Rectified spirit C
Petrol D

Question # 23

Gooch crucible is made of:

Brass A
Porcelain B
Bronze C
.Gold D

Question # 24

The solution left after the formation of crystals is called :

Residue. A
Filtrate. B
Mother liquor. C
None of these. D

Question # 25

Without proper suction filtration is

Rapid process. A
Fague process. B
Slow process. C
Useless process. D

Question # 26

The tip of the funnel should touch the side of the beaker in order to avoid :

Splashing. A
Leakage. B
Mixing. C
Contamination. D

Question # 27

Which one of the following substances is used to decolourizing agent

Abestos A
Animal charcoal B
conc. H2SO4 C
Silica gel D

Question # 28

The reagents like KMnO_{4 and HCL cannot be filtered through Gooch crucible if its base is covered with :}

Butterfly paper. A
Ordinay paper. B
Flying paper. C
Filter paper. D

Question # 29

Without proper suction,filtration is:

Rapid process A
Fague process B
Slow process C
Useless process D

Question # 30

The filtration process is used to separate solid from

Liquid A
Gas B
Solid C
All of above D

Sr.#	Question	Answer
1	A suitable solvent should dissolve maximum amount of solute at its boiling point and minimum amount at :	A. Freezing point. B. Room temperature. C. Boiling point. D. Sea level temperature.
2	The detection of functional group is called	A. Numerical analysis B. Qualitative analysis C. Combustion analysis D. Quantitative analysis
3	The tip of the funnel should touch the side of the beaker in order to avoid :	A. Splashing. B. Leakage. C. Mixing. D. Contamination.
4	The tip of the funnel should touch the side of the beaker in order to avoid	A. Splashing B. Leakage C. Mixing D. Contamination
5	Fluted filter paper is used to:	A. Decrease rate of filtration B. Increase rate of filtration C. Maintain rate of filtration D. None of above
6	Selection of filter paper depends upon sizes of particles to be:	A. Tested B. ^Filtered C. Checked D. All of above
7	The apex angle of the folded filter paper is slightly greater than :	A. 60° B. 30° C. 45° D. 90°
8	The reagents like KMnO_{4 and HCL cannot be filtered through Gooch crucible if its base is covered with :}	A. Butterfly paper. B. Ordinay paper. C. Flying paper. D. Filter paper.
9	The detection of functional group is called :	A. Numerical analysis. B. Qualitative analysis. C. Combustion analysis. D. Quantitative analysis.
10	Proteins and amino acid can be separated by:	A. Filtration B. ^Sublimation C. Chromatography D. Suction

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