ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

Question # 1

Sintered glass is a porous material use for :

Absorpton A
Decoration. B
Filtration. C
All of above. D

Question # 2

Gooch crucible is made of:

Brass A
Porcelain B
Bronze C
.Gold 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

Proteins and amino acid can be separated by:

Filtration A
^Sublimation B
Chromatography C
Suction D

Question # 5

The sample being analyzed is called

Electrolyte A
Substance B
Analyte C
All of above D

Question # 6

The solution left after the formation of crystals is called :

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

Question # 7

Direct conversion of solid intro vapours is called:

Crystallization A
Sublimation B
Obligation C
Vapourization D

Question # 8

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 # 9

The other name for distribution law is

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

Question # 10

Chromatography is derived from Greek word 'Khromatos' means:

Type writting A
Printing B
Color writing C
Writing D

Question # 11

Which one of the following substance is use as decolonizing agent

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

Question # 12

A complete chemical Characterization of a compound must include:

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

Question # 13

Without proper suction filtration is

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

Question # 14

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

60 degree A
30 degree B
45 degree C
90 degree D

Question # 15

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 # 16

A filtration process could be very time consuming if it were not aided by a gentle suction which is developed:

If the paper covers the funnel up to its circumstances A
If the paper has got small sized pores in B
If the stem of funnel is large so that it dips in to filtrate C
If the paper fits tightly. D

Question # 17

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

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

Question # 18

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 # 19

Without proper suction,filtration is:

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

Question # 20

The detection of functional group is called:

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

Question # 21

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 # 22

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 # 23

The detection of functional group is called

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

Question # 24

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 # 25

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

Extract A
Residue B
Filtrate C
Sample D

Question # 26

The filtration process is used to to separate solid from :

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

Question # 27

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

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

Question # 28

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 # 29

The filtration process is used to separate solid from:

Liquid A
Gas B
Solid C
All of above D

Question # 30

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

Sr.#	Question	Answer
1	The sample being analyzed is called	A. Electrolyte B. Substance C. Analyte D. All of above
2	The sample being analyzed is called:	A. Electrolyte B. Residue C. Undue D. Filtrate
3	Proteins and amino acid can be separated by:	A. Filtration B. ^Sublimation C. Chromatography D. Suction
4	A filtration process could be very time consuming if it were not aided by a gentle suction which is developed:	A. If the paper covers the funnel up to its circumstances B. If the paper has got small sized pores in C. If the stem of funnel is large so that it dips in to filtrate D. If the paper fits tightly.
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	Chromatography is derived from Greek word 'Khromatos' means:	A. Type writting B. Printing C. Color writing D. Writing
7	The sample being analyzed is called :	A. Electrolyte. B. Substance. C. Analyte. D. All of above.
8	The solid remained on filter paper during the filtration is called the :	A. Substance. B. Residue. C. Undue. D. Filtrate.
9	The tip of funnel should be 1 or 2cm larger than the circle of the	A. Beaker B. Solid C. Filter paper D. Liquid
10	The liquid obtained after passing the mixture through filter paper is termed as :	A. Extract. B. Residue. C. Filtrate. D. Sample.

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