General
✓✗How can you separate Ammonium chloride and sodium chloride from their mixture
- Evaporation and condensation
- Crystallization
- Sublimation
- Decantation
General
✓✗According to the size of solute particles what is the correct sequence (smallest to largest)
-
Solution
suspension 
colloid
-
Colloid
suspension 
solution
-
Solution
colloid 
suspension
-
Suspension
solution 
colloid
General
✓✗Brass is a homogenous mixture of
- Zinc and Carbon
- Tin and Lead
- Copper & Zinc
- Chromium & Cobalt
General
✓✗Two or more miscible liquids can be separated from their mixture by
- Using separating funnel
- Distillation
- Fractional distillation
- Evaporation
General
✓✗If 50ml of alcohol is mixed with 150ml of water, what will be the concentration of the solution?
- 25%
- 50%
- 33.3%
- 42%
General
✓✗How can Ammonium Chloride and Iron filings be separated from their mixture?
- Magnetic separation
- Sublimation
- Both, Magnetic separation and Sublimation can be used
- None of these
General
✓✗The non metal which is either white or red coloured is
- Sulphur
- Graphite
- Chlorine
- Phosphorus
General
✓✗If a saturated solution is heated it becomes
- Super saturated
- Unsaturated
- Remains saturated
- None of these
General
✓✗Which statement explains a chemical change?
- A new substance is formed in a chemical change
- Chemical changes are permanent
- Lot of heat is absorbed or released during a chemical change
- All are correct
General
✓✗Pure water is obtained from tap water by
- Filtration
- Adding alum
- Distillation
- Boiling