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

Without proper suction,filtration is:

Question # 2

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

Question # 3

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

Question # 4

Direct conversion of solid into vapors is called :

Question # 5

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

Question # 6

Estimation of Na in sea water is an example of

Question # 7

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

Question # 8

The other name for distribution law is

Question # 9

Naphthalene, iodine and NH4 can :

Question # 10

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

Question # 11

A complete chemical Characterization of a compound must include:

Question # 12

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

Question # 13

Which one of the following substance is use as decolonizing agent

Question # 14

The filtration process is used to to separate solid from :

Question # 15

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

Question # 16

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

Question # 17

The sample being analyzed is called

Question # 18

The sample being analyzed is called:

Question # 19

Analytical chemistry is the science of :

Question # 20

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

Question # 21

Solvent extraction method is a particularly useful technique of separation when the product to be separated is:

Question # 22

The filtration process is used to separate solid from

Question # 23

Analytical chemistry is the science of

Question # 24

Proteins and amino acid can be separated by:

Question # 25

A complete chemical characterization of a compound must include

Question # 26

In CCL4 solvent I3 shows:

Question # 27

The detection of functional group is called :

Question # 28

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

Question # 29

During the process of crystallization, the hot saturated solution:

Question # 30

The detection of functional group is called

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ECAT Chemistry Chapter 2 Important MCQ's

Sr.# Question Answer
1 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.
2 The apex angle of the folded filter paper is slightly greater than :
A. 60°

B. 30°
C. 45°
D. 90°
3 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
4 The tip of the funnel should touch the side of the beaker in order to avoid :
A. Splashing.
B. Leakage.
C. Mixing.
D. Contamination.
5 A complete chemical characterization of a compound must include
A. Qualitative analysis
B. Chemical analysis
C. Quantitative analysis
D. Both a and c
6 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.
7 The solid remained on filter paper during the filtration is called the :
A. Substance.
B. Residue.
C. Undue.
D. Filtrate.
8 The filtration process is used to to separate solid from :
A. Liquid.
B. Gas.
C. Solid.
D. All of above.
9 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.
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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