Analytical Chemistry II: Quantitative Analysis - SS3 Chemistry Past Questions and Answers - page 2
In gravimetric analysis, the analyte is determined based on:
Â
Absorption of light
Â
Mass of a precipitate
Â
The volume of a titrant
Â
Electrical conductivity
Which separation technique is best suited for separating a solid from a liquid when the solid particles are larger and can settle under gravity?
Â
Filtration
Â
Evaporation
Â
Decantation
Â
Distillation
What separation technique is commonly used to separate a mixture of salt and water?
Â
Filtration
Â
Evaporation
Â
Distillation
Â
Chromatography
Which separation technique is most effective for separating a mixture of two immiscible liquids with different boiling points?
Â
Filtration
Â
Decantation
Â
Evaporation
Â
Distillation
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?
Â
Sand is insoluble in water
Â
Sand has a lower density than water
Â
Sand is magnetic
Â
Sand forms a precipitate with water
In the process of chromatography, the separation of components occurs based on their:
Â
Density
Â
Solubility
Â
Boiling points
Â
Colour
Which separation technique involves heating a solution to evaporate the solvent and leave behind the solute?
Â
Distillation
Â
Filtration
Â
Chromatography
Â
Decantation
A mixture of oil and water can be separated using which technique?
Â
Filtration
Â
Decantation
Â
Distillation
Â
Emulsification
Which separation technique is commonly used in the purification of alcohol?
Â
Filtration
Â
Evaporation
Â
Distillation
Â
Chromatography
What separation technique is based on the principle of differences in solubility between components in a mixture?
Â
Filtration
Â
Distillation
Â
Evaporation
Â
Chromatography
Loading lesson…