ECAT Pre Engineering Chemistry Chapter 2 MCQ Test With Answer

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

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

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ECAT Chemistry Chapter 2 Experimental Techniques in Chemistry

00:00
Question # 1

The sample being analyzed is called :

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Estimation of Na in sea water is an example of

Question # 6

Estimation of Na in sea water is an example of :

Question # 7

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

Question # 8

During the process of crystallization, the hot saturated solution:

Question # 9

The filtration process is used to separate solid from:

Question # 10

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

Question # 11

Sintered glass is porous material used for:

Question # 12

The filtration process is used to separate solid from

Question # 13

The solid remained on filter paper during filtration is called the

Question # 14

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

Question # 15

The filtration process is used to to separate solid from :

Question # 16

Chromatography is derived from Greek word 'Khromatos' means:

Question # 17

95% ethanol is called:

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

A complete chemical Characterization of a compound must include:

Question # 25

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

Question # 26

Which one of the following substances is used to decolourizing agent

Question # 27

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

Question # 28

Direct conversion of solid intro vapours is called:

Question # 29

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

Question # 30

Fluted filter paper is used to:

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ECAT Chemistry Chapter 2 Important MCQ's

Sr.# Question Answer
1 Estimation of Na in sea water is an example of
A. Numerical analysis
B. Qualitative analysis
C. Quantitative analysis
D. None of above
2 A suitable solvent should dissolve maximum amount of solute at its boiling point and minimum amount at :
A. Freezing point.
B. Room temperature.
C. Boiling point.
D. Sea level temperature.
3 Solvent extraction is an unstable, Process and it is called by:
A. The amount of solute
B. Distribution law
C. The amount of solvent used
D. Law of mass action
4 Direct conversion of solid into vapors is called :
A. Crystallization
B. Sublimation
C. Obligation
D. Vaporization.
5 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.
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 The detection of functional group is called :
A. Numerical analysis.
B. Qualitative analysis.
C. Combustion analysis.
D. Quantitative analysis.
8 Solvent extraction method is a particularly useful technique of separation when the product to be separated is:
A. non-volatile or thermally unstable.
B. volatile or thermally stable.
C. non-volatile or thermally stable.
D. volatile or thermally unstable.
9 The filtration process is used to to separate solid from :
A. Liquid.
B. Gas.
C. Solid.
D. All of above.
10 Which one of the following substances is used to decolourizing agent
A. Abestos
B. Animal charcoal
C. conc. H2SO4
D. Silica gel

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