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Analytical Chemistry II: Quantitative Analysis - SS3 Chemistry Past Questions and Answers - page 2

11

In gravimetric analysis, the analyte is determined based on:

 

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A

Absorption of light

 

B

Mass of a precipitate

 

C

The volume of a titrant

 

D
Electrical conductivity
12

Which separation technique is best suited for separating a solid from a liquid when the solid particles are larger and can settle under gravity?

 

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A

Filtration

 

B

Evaporation

 

C

Decantation

 

D
Distillation
13

What separation technique is commonly used to separate a mixture of salt and water?

 

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A

Filtration

 

B

Evaporation

 

C

Distillation

 

D
Chromatography
14

Which separation technique is most effective for separating a mixture of two immiscible liquids with different boiling points?

 

View related lesson
A

Filtration

 

B

Decantation

 

C

Evaporation

 

D
Distillation
15

A mixture of sand and water can be separated using filtration. What property of sand allows it to be separated from water through this technique?

 

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A

Sand is insoluble in water

 

B

Sand has a lower density than water

 

C

Sand is magnetic

 

D
Sand forms a precipitate with water
16

In the process of chromatography, the separation of components occurs based on their:

 

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A

Density

 

B

Solubility

 

C

Boiling points

 

D
Colour
17

Which separation technique involves heating a solution to evaporate the solvent and leave behind the solute?

 

View related lesson
A

Distillation

 

B

Filtration

 

C

Chromatography

 

D
Decantation
18

A mixture of oil and water can be separated using which technique?

 

View related lesson
A

Filtration

 

B

Decantation

 

C

Distillation

 

D
Emulsification
19

Which separation technique is commonly used in the purification of alcohol?

 

View related lesson
A

Filtration

 

B

Evaporation

 

C

Distillation

 

D
Chromatography
20

What separation technique is based on the principle of differences in solubility between components in a mixture?

 

View related lesson
A

Filtration

 

B

Distillation

 

C

Evaporation

 

D
Chromatography