WorksheetsMixtures and separation
Total questions: 15
Worksheet time: 11mins
In chemistry, a solution contains
An answer to a problem
A solvent and a solute
A solvent and suspended particles.
A solution and a solvent
A suspension contains:
A bridge hanging over a valley
A solvent and a solute
A solvent and suspended particles
A solution and a solvent
Pure substances contain:
Only one type of substance
Substances that cannot be chemically separated
A solvent and a solute
All of the above
A soluble substance will
Form small particles to form a clear suspension
Dissolve to form a cloudy solution
Dissolve to form a clear solution
Form small particles to form a cloudy suspension
Which is the best separation technique to get salt from salty water?
Evaporation
Filtration
Distillation
Sieving
What is the correct order for obtaining salt from a mixture of sand and salt?
Dissolving in water - filtration - evaporation
Evaporation - filtration - dissolving in water
Filtration - dissolving in water - evaporation
Dissolving in water-sieving- decanting
Which part of the following mixture (sugar, sand and water) would pass through filter paper?
Sugar and water
Sand
Water
Sugar
Which statement about mixtures is FALSE?
A mixture contains more than one ingredient.
A mixture can be separated.
The ingredients of a mixture keep their physical properties.
All mixtures are food or drink.
Which of the following is not an example of a mixture?
Lemonade
Sodium chloride
Fruit salad
Food colouring and water
The best method of separating a solution from a suspension is
Filtration
Settling
Decanting
Sieving
Which of the following ingredients are soluble in water?
Cork
Glass
Sugar
Oil
A particular soil is a mixture of sand, dead plant matter, water and air. The states of matter in this mixture are:
Solid only
Solid and liquid only
Liquid and gas only
Solid , liquid and gas
Which two features identify suspensions?
The components separate out if left to stand
The components do not separate out if left to stand
They are transparent
Particles of one component are suspended in the other component
Colloids are the same as suspensions in that particles of one component are suspended in the other component, but in colloids the particles stay suspended.
True
False
Neither
A mixture is a combination of two or more substances that cannot be physically separated.
True
False
