MIXTURE
Science
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10 questions
Question 1
Multiple Choice
10 points
What the meaning of mixture?
A.Consist of two or more elements or compounds mixed physically
B.Consist of two or more elements or compounds mixed chemically
C.Consist of three elements or compounds mixed physically
D.Consist of three elements or compounds mixed chemically
Question 2
Multiple Choice
10 points
Below are few methods use to separate mixtures. Which is not a methods to separate mixtures?
A.Filtration
B.Chromatography
C.Floatation
D.Evaporation
Question 3
Multiple Choice
10 points
What is method used to separate the sand and water?
A.Distillation
B.Floatation
C.Sedimentation
D.Chromatography
Question 4
Multiple Choice
10 points
Which of the following is mixture?
A.Sugar
B.Salt
C.Cocktail
D.Pure water
Question 5
Multiple Choice
10 points
What are the purpose of floatation method?
A.To separate solid and solid
B.To separate solid and liquid
C.To separate substance of different volumes
D.To separate substances of different densities
Question 6
Multiple Choice
10 points
What methods can used to separate paper clips and glass fragments?
A.Flotation
B.Using magnet
C.Distillation
D.Chromatography
Question 7
Multiple Choice
10 points
What methods used to produced a perfume?
A.Distillation
B.Filtration
C.Sedimentation
D.Seiving
Question 8
Multiple Choice
10 points
What methods can used to separated three types of water-soluble ink?
A.Chromatography
B.Distillation
C.Floatation
D.Using magnet
Question 9
Multiple Choice
10 points
State two process involve in the distillation method.
A.Boiling and freezing
B.Boiling and condensation
C.Condensation and freezing
D.Condensation and evaporation
Question 10
Multiple Choice
10 points
Tan found that experiment had failed because the water collected in the conical flask was still muddy. Suggest to Tan step he should take to avoid the same result.
A.use a porcelain chips
B.use a magnet
C.use a more water
D.use a sulphur powder