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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:

 

A

Absorption of light

 

B

Mass of a precipitate

 

C

The volume of a titrant

 

D

Electrical conductivity

correct option: b
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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?

 

A

Filtration

 

B

Evaporation

 

C

Decantation

 

D

Distillation

correct option: a
Users' Answers & Comments
13

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

 

A

Filtration

 

B

Evaporation

 

C

Distillation

 

D

Chromatography

correct option: b
Users' Answers & Comments
14

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

 

A

Filtration

 

B

Decantation

 

C

Evaporation

 

D

Distillation

correct option: d
Users' Answers & Comments
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?

 

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

correct option: a
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16

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

 

A

Density

 

B

Solubility

 

C

Boiling points

 

D

Colour

correct option: b
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17

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

 

A

Distillation

 

B

Filtration

 

C

Chromatography

 

D

Decantation

correct option: a
Users' Answers & Comments
18

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

 

A

Filtration

 

B

Decantation

 

C

Distillation

 

D

Emulsification

correct option: b
Users' Answers & Comments
19

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

 

A

Filtration

 

B

Evaporation

 

C

Distillation

 

D

Chromatography

correct option: d
Users' Answers & Comments
20

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

 

A

Filtration

 

B

Distillation

 

C

Evaporation

 

D

Chromatography

correct option: d
Users' Answers & Comments
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