Question
The physical state of ordinary substances does not include substances?
Answer (Detailed Solution Below)
The correct answer is Colloid
Colloidal solution: The particles of a colloid are uniformly mixed throughout the solution. Due to the relatively smaller size of particles as compared to that of suspension, the mixture appears to be homogeneous.but actually a colloidal solution is a heterogeneous mixture. example : blood, paints, perfume, etc.
Physical states of matter are: solid,liquid and gas
Solids: Solids have fixed shape and fixed volume. Solids have high density. Solids are negligibly compressed. Particles have maximum force of attraction. Solids have least intermolecular space between particles.
Liquids:In liquid, particles are less tightly packed as compared to solids. That is why, there is less force of attraction than solids. They take the shape in which container it is placed. For example: Milk, blood, coffee, etc. There are weak forces of attraction between them.
Gases: In gases, particles have a large space between them. That is why, force of attraction between the particles is negligible in gases and they can move freely. It can be highly compressed. For example: oxygen, carbon-dioxide, nitrogen, etc.
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