ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 2 Experimental Techniques in Chemistry

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ECAT Chemistry Chapter 2 Experimental Techniques in Chemistry

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Question # 1

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

Question # 2

A complete chemical characterization of a compound must include

Question # 3

Estimation of Na in sea water is an example of :

Question # 4

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

Question # 5

The filtration process is used to separate solid from:

Question # 6

The sample being analyzed is called

Question # 7

A complete chemical Characterization of a compound must include:

Question # 8

The reagents like KMnO4 and HCL cannot be filtered through Gooch crucible if its base is covered with :

Question # 9

Direct conversion of solid into vapors is called :

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Naphthalene, iodine and NH4 can :

Question # 16

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

Question # 17

Analytical chemistry is the science of :

Question # 18

Chromatography is derived from Greek word 'Khromatos' means:

Question # 19

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

Question # 20

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

Question # 21

Analytical chemistry is the science of

Question # 22

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

Question # 23

95% ethanol is called :

Question # 24

Fluted filter paper is used to:

Question # 25

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

Question # 26

Without proper suction filtration is

Question # 27

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

Question # 28

Gooch crucible is made of:

Question # 29

The sample being analyzed is called:

Question # 30

Sintered glass is a porous material use for :

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Sr.# Question Answer
1 Analytical chemistry is the science of
A. Chemical characterization
B. Physical characterization
C. Biological characterization
D. Biochemical characterization
2 Analytical chemistry is the science of :
A. Chemical Characterization.
B. Physical Characterization.
C. Biological Characterization.
D. Biochemical Characterization.
3 During the process of crystallization, the hot saturated solution:
A. is cooled very slowly to get large size crystals
B. is cooled at a moderate rate to get medium sized crystals of the product
C. is evaporated to get the crystals of the products
D. is mixed with an immiscible liquid to get the pure crystals of the product.
4 Estimation of Na in sea water is an example of :
A. Numerical analysis.
B. Qualitative analysis.
C. Quantitative analysis.
D. None of above.
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 Without proper suction filtration is
A. Rapid process.
B. Fague process.
C. Slow process.
D. Useless process.
7 The solution left after the formation of crystals is called :
A. Residue.
B. Filtrate.
C. Mother liquor.
D. None of these.
8 Selection of filter paper depends upon sizes of particles to be :
A. Tested.
B. Filtered.
C. Checked.
D. All of above.
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 sample being analyzed is called
A. Electrolyte
B. Substance
C. Analyte
D. All of above
11 Chromatography is derived from Greek word 'Khromatos' means:
A. Type writting
B. Printing
C. Color writing
D. Writing
12 Proteins and amino acid can be separated by:
A. Filtration
B. Sublimation
C. Chromatography
D. Suction
13 The tip of the funnel should touch the side of the beaker in order to avoid
A. Splashing
B. Leakage
C. Mixing
D. Contamination
14 The filtration process is used to to separate solid from :
A. Liquid.
B. Gas.
C. Solid.
D. All of above.
15 A complete chemical characterization of a compound must include
A. Qualitative analysis
B. Chemical analysis
C. Quantitative analysis
D. Both a and c
16 Identification of a substance, determination of its structure and quantitative analysis of its composition are the aspects covered by
A. Modern analytical physics
B. Mechanical chemistry
C. Biochemistry
D. Modern analytical chemistry
17 In CCL4 solvent I3 shows:
A. Blue Color
B. Brown Color
C. Purple Color
D. Pink Color
18 Estimation of Na in sea water is an example of
A. Numerical analysis
B. Qualitative analysis
C. Quantitative analysis
D. None of above
19 The sample being analyzed is called :
A. Electrolyte.
B. Substance.
C. Analyte.
D. All of above.
20 The detection of functional group is called :
A. Numerical analysis.
B. Qualitative analysis.
C. Combustion analysis.
D. Quantitative analysis.
21 95% ethanol is called:
A. Rectified other
B. Diesel
C. Rectified spirit
D. Petrol
22 The tip of the funnel should touch the side of the beaker in order to avoid :
A. Splashing.
B. Leakage.
C. Mixing.
D. Contamination.
23 The solid remained on filter paper during the filtration is called the :
A. Substance.
B. Residue.
C. Undue.
D. Filtrate.
24 The comparative rates at which the solutes move in paper chromatography, depend on:
A. the size of per sued.
B. Rf values of solutes
C. temperature of the experiment
D. size of the chromatography tank used.
25 The sample being analyzed is called:
A. Electrolyte
B. Residue
C. Undue
D. Filtrate
26 The apex angle of the folded filter paper is slightly greater than :
A. 60°

B. 30°
C. 45°
D. 90°
27 The filtration process is used to separate solid from:
A. Liquid
B. Gas
C. Solid
D. All of above
28 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.

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