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