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Worksheetsphys
Total questions: 14
Worksheet time: 7mins
Dissolved Sodium chloride can be separated from salt solution by
Chemical process of extraction
Physical process of evaporation
Chemical processes
The amount of solute present per unit volume or per unit mass of the solution/solvent is known as
(a) Composition of solute
(b) Concentration of a solvent
(c) Concentration of a solute
(d) Concentration of a solution
The quantity of matter present in an object is called
weight
Gram
mass
density
Tyndall effect is observed in forests because of
tress
high oxygen level
mist and dust particles in the air
less sunlight
colloids can be seperated by
filtration
distillation
sedimentation
centrifugation
formula to find concentration of a solution?
(full small)
(a)
______________ is the homogenous mixture of 2 or more substances
Colloid
Tyndall Effect
Solution
Centrifugation
Which of the following is an example of Aerosol?
Whipping Cream
Milky Glass
Iodine
Fog
Which of the following is an Example of Colloid
Milk
Jelly
Honey
Iodine
What are the two components of a Colloid ?
Solvent, Solute
Salt, Water
Sugar,Water
Dispersed Phase, Dispersion Medium
What type of solution is required for crystallizaton ?
Unsaturated
Super saturated
Diluted
None of the above
Which of the following elements is not a metalloid?
Tungsten
Boron
Silicon
Germanium
Which separation technique is shown in the picture ?
Distillation
Evaporation
Crystallization
Both 2 & 3
Which of the following is an example of heterogeneous mixture ? (two or more options might be correct)
Bottled water
Table salt
Pieces of copper
Candle
