ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

Question # 1

A complete chemical characterization of a compound must include

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

Question # 2

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 # 3

The filtration process is used to separate solid from

Liquid A
Gas B
Solid 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

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

60°
A
30° B
45° C
90° D

Question # 6

A complete chemical Characterization of a compound must include:

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

Question # 7

Which one of the following substances is used to decolourizing agent

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

Question # 8

Estimation of Na in sea water is an example of

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

Question # 9

Analytical chemistry is the science of

Chemical characterization A
Physical characterization B
Biological characterization C
Biochemical characterization D

Question # 10

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 # 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

In chromatography, the point at which solvent maximum rises called:

Solvent front A
Base line B
Element C
Chromatogram D

Question # 13

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 # 14

Sintered glass is a porous material use for :

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

Question # 15

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 # 16

95% ethanol is called:

Rectified other A
Diesel B
Rectified spirit C
Petrol D

Question # 17

95% ethanol is called :

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

Question # 18

The detection of functional group is called:

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

Question # 19

Naphthalene, iodine and NH_{4 can :}

Sublime. A
Both (a) and (c). B
Crystallize. C
None of above. D

Question # 20

The sample being analyzed is called:

Electrolyte A
Residue B
Undue C
Filtrate D

Question # 21

The other name for distribution law is

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

Question # 22

Proteins and amino acid can be separated by:

Filtration A
^Sublimation B
Chromatography C
Suction D

Question # 23

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 # 24

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 # 25

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 # 26

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

Extract A
Residue B
Filtrate C
Sample D

Question # 27

The solution left after the formation of crystals is called :

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

Question # 28

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 # 29

Sintered glass is porous material used for:

Absorption A
Decoration B
Filtration C
All of above D

Question # 30

Direct conversion of solid intro vapours is called:

Crystallization A
Sublimation B
Obligation C
Vapourization D

Sr.#	Question	Answer
1	Without proper suction filtration is	A. Rapid process. B. Fague process. C. Slow process. D. Useless process.
2	The tip of funnel should be 1 or 2cm larger than the circle of the	A. Beaker B. Solid C. Filter paper D. Liquid
3	A complete chemical Characterization of a compound must include:	A. Qualitative analysis B. Chemical analysis C. Quantitative analysis D. None of above
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	The filtration process is used to separate solid from	A. Liquid B. Gas C. Solid D. All of above
6	Which one of the following substances is used to decolourizing agent	A. Abestos B. Animal charcoal C. conc. H2SO4 D. Silica gel
7	Gooch crucible is made of:	A. Brass B. Porcelain C. Bronze D. .Gold
8	Analytical chemistry is the science of	A. Chemical characterization B. Physical characterization C. Biological characterization D. Biochemical characterization
9	Sintered glass is a porous material use for :	A. Absorpton B. Decoration. C. Filtration. D. All of above.
10	The other name for distribution law is	A. Dispersive law B. Partition law C. Avogadro's law D. separation law

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