Q11 of 25 Page 154

Radha prepared a solution which could be separated by filtration.

i) Name the type of solution.


ii) Is the solution transparent or opaque?


iii) Mention the nature of the solution.


iv) Mention the size of the solute particle.

i) Suspension solution

Explanation: The only type of solution that can be filtered is suspension solution. This property is attributed to their large particle sizes which allow them to be filtered.


ii) Opaque


Explanation: Solute particles are insoluble in the solvent and remain suspended in the solution. Thus we cannot see through them and hence they are opaque.


iii) Heterogenous


Explanation: Suspension solutions are heterogenous mixtures in which the solute particles are not uniformly distributed in the solvent. Only true solutions are heterogenous in nature.


iv) The suspension solutions have the biggest particles which have the size greater than 2000Å. True solutions have the least particle size followed by colloidal solution particles.


More from this chapter

All 25 →
9

Name the type of solution formed in the following cases:

i) 20g of NaCl in 100g of water.


ii) 36g of NaCl in 100g of water.


iii) 45g of NaCl in 100g of water at 80°C.


iv) Sulphur dissolved in CS2


v) Nitrogen in the soil.

 10

Give the dispersed phase and the dispersion medium in each of the following:

a. cheese b. soda water c. Smoke

 12


In the above case, Sekar observed that the water turned sweeter after sometime.


Explain the reason for the same.

 13

Beaker ‘A’ has chalk powder mixed with water and beaker ‘B’ has protein dissolved in water.

i) Which solution shows Brownian movement?


ii) Identify the solution that has particle size greater than 2000Å


iii) Which beaker contains colloidal solution?


iv) Mention the size of the particle present in beaker B.


v) Say whether colloidal solution is homogeneous or heterogeneous