General
✓✗Size of solute particles in a colloid is
- Less than 1nm
- More than 100nm
- Between 1nm and 100nm
- Variable
General
✓✗A mixture shows
- New properties
- Properties of the major components
- Properties of all the components
- No properties
General
✓✗Separation of two liquids by fractional distillation depends on
- Colour of the two liquids
- Difference in their boiling points
- Difference in their freezing
- Difference in their densities
General
✓✗Pure substances include
- Elements and compounds
- Homogenous mixture
- Heterogeneous mixture
- Colloids
General
✓✗Jellies are example of
- Solution
- Emulsion
- Foam
- Gel
General
✓✗Oil and water can be separated from their mixture by
- Distillation
- Fractional distillation
- Separating funnel
- Boiling
General
✓✗Chalk and water can be separated from their mixture by
- Decantation
- Sedimentation
- Filtration
- Evaporation
General
✓✗Common salt is purified by
- Evaporation
- Crystallization
- Centrifugation
- Dissolving in suitable solvent
General
✓✗The components of a mixture can be separated by which of the following method?
- Filtration
- Sublimation
- Using a solvent
- All of these
General
✓✗Chromatography is used to separate
- Two miscible liquids
- One liquid and a soluble solid
- 2 or more dissolved solids
- 2 or more immiscible liquids