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

Question # 2

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

Question # 3

Direct conversion of solid into vapors is called :

Question # 4

95% ethanol is called:

Question # 5

The other name for distribution law is

Question # 6

Chromatography is derived from Greek word 'Khromatos' means:

Question # 7

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

Question # 8

A complete chemical Characterization of a compound must include:

Question # 9

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

Question # 10

The sample being analyzed is called :

Question # 11

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

Question # 12

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

Question # 13

Analytical chemistry is the science of

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

Naphthalene, iodine and NH4 can :

Question # 18

The solid remained on filter paper during filtration is called the

Question # 19

Estimation of Na in sea water is an example of

Question # 20

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

Question # 21

Analytical chemistry is the science of :

Question # 22

The detection of functional group is called:

Question # 23

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

Question # 24

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

Question # 25

95% ethanol is called :

Question # 26

In CCL4 solvent I3 shows:

Question # 27

The filtration process is used to to separate solid from :

Question # 28

Without proper suction,filtration is:

Question # 29

The solution left after the formation of crystals is called :

Question # 30

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

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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 Which one of the following substances is used to decolourizing agent
A. Abestos
B. Animal charcoal
C. conc. H2SO4
D. Silica gel
3 Proteins and amino acid can be separated by:
A. Filtration
B. Sublimation
C. Chromatography
D. Suction
4 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
5 Without proper suction,filtration is:
A. Rapid process
B. Fague process
C. Slow process
D. Useless process
6 95% ethanol is called :
A. Rectified ether.
B. Diesel.
C. Rectified spirit.
D. Petrol.
7 Which one of the following substance is use as decolonizing agent
A. Asbestos
B. Animal charcoal
C. conc, H2SO4
D. Silica gel
8 In chromatography, the point at which solvent maximum rises called:
A. Solvent front
B. Base line
C. Element
D. Chromatogram
9 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.
10 Gooch crucible is made of:
A. Brass
B. Porcelain
C. Bronze
D. .Gold

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