ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

Question # 1

95% ethanol is called:

Rectified other A
Diesel B
Rectified spirit C
Petrol D

Question # 2

Chromatography is derived from Greek word 'Khromatos' means:

Type writting A
Printing B
Color writing C
Writing D

Question # 3

The solution left after the formation of crystals is called :

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

Question # 4

The detection of functional group is called :

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

Question # 5

The filtration process is used to to separate solid from :

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

Question # 6

Direct conversion of solid into vapors is called :

Crystallization A
Sublimation B
Obligation C
Vaporization. D

Question # 7

Estimation of Na in sea water is an example of :

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

Question # 8

The filtration process is used to separate solid from

Liquid A
Gas B
Solid C
All of above D

Question # 9

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 # 10

Analytical chemistry is the science of :

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

Question # 11

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 # 12

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 # 13

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

Solvent front A
Base line B
Element C
Chromatogram D

Question # 14

The sample being analyzed is called:

Electrolyte A
Residue B
Undue C
Filtrate D

Question # 15

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 # 16

The solid remained on filter paper during filtration is called the

Substance A
Residue B
Undue C
Filtrate D

Question # 17

Without proper suction,filtration is:

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

Question # 18

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 # 19

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

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

Question # 20

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 # 21

Which one of the following substances is used to decolourizing agent

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

Question # 22

Gooch crucible is made of:

Brass A
Porcelain B
Bronze C
.Gold D

Question # 23

Without proper suction filtration is

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

Question # 24

The sample being analyzed is called

Electrolyte A
Substance B
Analyte C
All of above D

Question # 25

Proteins and amino acid can be separated by:

Filtration A
^Sublimation B
Chromatography C
Suction D

Question # 26

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 # 27

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 # 28

In CCL4 solvent I3 shows:

Blue Color A
Brown Color B
Purple Color C
Pink Color D

Question # 29

The sample being analyzed is called :

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

Question # 30

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

Beaker A
Solid B
Filter paper C
Liquid D

Sr.#	Question	Answer
1	Analytical chemistry is the science of	A. Chemical characterization B. Physical characterization C. Biological characterization D. Biochemical characterization
2	The solid remained on filter paper during filtration is called the	A. Substance B. Residue C. Undue D. Filtrate
3	Selection of filter paper depends upon sizes of particles to be :	A. Tested. B. Filtered. C. Checked. D. All of above.
4	The solution left after the formation of crystals is called :	A. Residue. B. Filtrate. C. Mother liquor. D. None of these.
5	In CCL4 solvent I3 shows:	A. Blue Color B. Brown Color C. Purple Color D. Pink Color
6	The apex angle of the folded filter paper is slightly greater is termed as:	A. 60 degree B. 30 degree C. 45 degree D. 90 degree
7	95% ethanol is called:	A. Rectified other B. Diesel C. Rectified spirit D. Petrol
8	Solvent extraction is an equilibrium process and it is controlled by :	A. law of mass action. B. the amount of solvent used. C. distribution law. D. the amount of solute.
9	Without proper suction filtration is	A. Rapid process. B. Fague process. C. Slow process. D. Useless process.
10	The sample being analyzed is called:	A. Electrolyte B. Residue C. Undue D. Filtrate

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