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

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

Question # 2

Which one of the following substances is used to decolourizing agent

Question # 3

The filtration process is used to separate solid from

Question # 4

Chromatography is derived from Greek word 'Khromatos' means:

Question # 5

Naphthalene, iodine and NH4 can :

Question # 6

The sample being analyzed is called

Question # 7

Analytical chemistry is the science of

Question # 8

Without proper suction,filtration is:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Direct conversion of solid into vapors is called :

Question # 13

The filtration process is used to separate solid from:

Question # 14

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

Question # 15

Gooch crucible is made of:

Question # 16

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

Question # 17

Proteins and amino acid can be separated by:

Question # 18

A complete chemical characterization of a compound must include

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Estimation of Na in sea water is an example of :

Question # 23

The detection of functional group is called:

Question # 24

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

Question # 25

In CCL4 solvent I3 shows:

Question # 26

Sintered glass is a porous material use for :

Question # 27

The other name for distribution law is

Question # 28

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

Question # 29

Without proper suction filtration is

Question # 30

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

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ECAT Chemistry Chapter 2 Important MCQ's

Sr.# Question Answer
1 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.
2 Solvent extraction is an unstable,Process and it is controlled by:
A. Alcohol extraction
B. Petrol extraction
C. Phenol extraction
D. Ether extraction
3 95% ethanol is called:
A. Rectified other
B. Diesel
C. Rectified spirit
D. Petrol
4 The detection of functional group is called
A. Numerical analysis
B. Qualitative analysis
C. Combustion analysis
D. Quantitative analysis
5 Which one of the following substances is used to decolourizing agent
A. Abestos
B. Animal charcoal
C. conc. H2SO4
D. Silica gel
6 The reagents like KMnO4 and HCL cannot be filtered through Gooch crucible if its base is covered with :
A. Butterfly paper.
B. Ordinay paper.
C. Flying paper.
D. Filter paper.
7 Estimation of Na in sea water is an example of :
A. Numerical analysis.
B. Qualitative analysis.
C. Quantitative analysis.
D. None of above.
8 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.
9 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.
10 Direct conversion of solid into vapors is called :
A. Crystallization
B. Sublimation
C. Obligation
D. Vaporization.

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