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The particles size of a solution is:
smaller than 1 nm in diameter
smaller than 28 nm in diameter
smaller than 100 nm in diameter
smaller than 52 nm in diameter
smaller than 1 nm in diameter
A true solution is a homogeneous mixture where solute particles are dispersed at the molecular or ionic level. The particle size in such a solution is typically less than 1 nm (10тИТ9 m) in diameter.
A true solution is a homogeneous mixture where solute particles are dispersed at the molecular or ionic level. The particle size in such a solution is typically less than 1 nm (10тИТ9 m) in diameter.
Think of salt dissolved in water; the salt molecules break down so small that they become 'invisible' within the water, unlike muddy water where particles are large enough to be seen and filtered.
STC (Solution-True-Compact): Solutions are Tiny (under 1nm) and Clear.
1┬аnm=10тИТ9┬аm тАФ definition of nanometer scale
In a true solution, solute particles are too small to be seen by the naked eye or even by high-power microscopes. Because their size is smaller than the wavelength of visible light, they do not scatter light, meaning they do not exhibit the Tyndall effect. These particles are in constant motion and can easily pass through filter paper and animal membranes.
True solutions are homogeneous mixtures.
Particles in a true solution do not settle down upon standing.
True solutions do not scatter light (no Tyndall effect).
Components cannot be separated by filtration.
High stability and uniformity
Particles do not undergo sedimentation
Preparation of standard laboratory reagents
Intravenous fluids used in medicine
| Feature | True Solution | Colloid |
|---|---|---|
Particle Size | < 1 nm | 1-1000 nm |
Colloids have particle sizes ranging from 1 nm to 1000 nm.
Suspensions have particle sizes greater than 1000 nm.
Options B, C, and D are incorrect because they define ranges that either overlap with colloids or include particles that would form heterogeneous mixtures.
A is correct тАФ The particle size of a true solution is defined as being smaller than 1 nm in diameter.
Always remember the hierarchy of particle size: Solution < 1 nm < Colloid < 1000 nm < Suspension. This classification is a favorite topic in competitive Chemistry.
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