10 Questions
What is a mixture?
A mixture contains particles of two or more pure substances which may be present in it in any ratio.
Give an example of a homogeneous mixture.
Sugar solution and air are examples of homogeneous mixtures.
Provide an example of a heterogeneous mixture.
Mixtures of salt and sugar, grains and pulses along with some dirt are examples of heterogeneous mixtures.
How can the components of a mixture be separated?
The components of a mixture can be separated using physical methods like simple hand-picking, filtration, crystallisation, and distillation.
What are pure substances?
Pure substances have constituent particles with fixed composition.
Differentiate between homogeneous and heterogeneous mixtures based on composition.
Homogeneous mixtures have uniform composition throughout, while heterogeneous mixtures do not have uniform composition and may have visible different components.
List some examples of mixtures commonly found in daily life.
Examples include sugar solution in water, air, and tea.
Explain the variable composition of mixtures.
Mixtures can have variable composition as they contain particles of two or more pure substances present in any ratio.
How do pure substances differ from mixtures?
Pure substances have fixed composition, while mixtures have variable composition.
Describe how components of a mixture can be separated.
Components of a mixture can be separated using physical methods such as simple hand-picking, filtration, crystallisation, and distillation.
Test your knowledge on the characteristics of different states of matter like solids, liquids, and gases. Learn about how the arrangement and movement of particles contribute to the properties of each state.
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