ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

Question # 1

Direct conversion of solid intro vapours is called:

Crystallization A
Sublimation B
Obligation C
Vapourization D

Question # 2

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 # 3

Which one of the following substance is use as decolonizing agent

Asbestos A
Animal charcoal B
conc, H₂SO₄ C
Silica gel D

Question # 4

A suitable solvent should dissolve maximum amount of solute at its boiling point and minimum amount at :

Freezing point. A
Room temperature. B
Boiling point. C
Sea level temperature. D

Question # 5

The solid remained on filter paper during filtration is called the

Substance A
Residue B
Undue C
Filtrate D

Question # 6

95% ethanol is called :

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

Question # 7

The sample being analyzed is called :

Electrolyte. A
Substance. B
Analyte. C
All of above. D

Question # 8

Gooch crucible is made of:

Brass A
Porcelain B
Bronze C
.Gold D

Question # 9

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

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

Question # 10

Analytical chemistry is the science of :

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

Question # 11

The detection of functional group is called:

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

Question # 12

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 # 13

Proteins and amino acid can be separated by:

Filtration A
^Sublimation B
Chromatography C
Suction D

Question # 14

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

Tested A
^Filtered B
Checked C
All of above D

Question # 15

The filtration process is used to separate solid from

Liquid A
Gas B
Solid C
All of above D

Question # 16

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 # 17

The tip of funnel should be 1 or 2cm larger than the circle of the

Beaker A
Solid B
Filter paper C
Liquid D

Question # 18

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 # 19

The filtration process is used to to separate solid from :

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

Question # 20

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

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

Question # 21

Without proper suction filtration is

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

Question # 22

Which one of the following substances is used to decolourizing agent

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

Question # 23

A complete chemical Characterization of a compound must include:

Qualitative analysis A
Chemical analysis B
Quantitative analysis C
None of above D

Question # 24

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

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

Question # 25

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

60°
A
30° B
45° C
90° D

Question # 26

The filtration process is used to separate solid from:

Liquid A
Gas B
Solid C
All of above D

Question # 27

The other name for distribution law is

Dispersive law A
Partition law B
Avogadro's law C
separation law D

Question # 28

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 # 29

The comparative rates at which the solutes move in paper chromatography, depend on:

the size of per sued. A
R_f values of solutes B
temperature of the experiment C
size of the chromatography tank used. D

Question # 30

Without proper suction,filtration is:

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

Sr.#	Question	Answer
1	The sample being analyzed is called :	A. Electrolyte. B. Substance. C. Analyte. D. All of above.
2	The tip of the funnel should touch the side of the beaker in order to avoid	A. Splashing B. Leakage C. Mixing D. Contamination
3	Without proper suction filtration is	A. Rapid process. B. Fague process. C. Slow process. D. Useless process.
4	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.
5	Naphthalene, iodine and NH_{4 can :}	A. Sublime. B. Both (a) and (c). C. Crystallize. D. None of above.
6	Gooch crucible is made of:	A. Brass B. Porcelain C. Bronze D. .Gold
7	The apex angle of the folded filter paper is slightly greater than :	A. 60° B. 30° C. 45° D. 90°
8	Identification of a substance, determination of its structure an quantitative analysis of its composition are the aspects covered by:	A. Modern analytical physics. B. Mechanical chemistry. C. Biochemistry. D. Modern analytical chemistry.
9	Which one of the following substance is use as decolonizing agent	A. Asbestos B. Animal charcoal C. conc, H₂SO₄ D. Silica gel
10	Analytical chemistry is the science of	A. Chemical characterization B. Physical characterization C. Biological characterization D. Biochemical characterization

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