QUESTION 4 10 points Save Answer Colloidal particles O a) are very prone to coll

Question

QUESTION 4 10 points Save Answer Colloidal particles O a) are very prone to collisions and so grow in size easily O b) are the main source of fat in fish. O e) may have either all positive or all negative electrical charges and so repel each other O d) All of the above. QUESTION 5 10 points Save Answer n a true solution, the particles in a colloidal suspension cannot be seen under a microscope, but unlike a true solution colloidal particles O a) collide with the microscope. O b) are not left behind if the solvent is evaporated O c) scatter light allowing a beam of light to become visable. Od) all of the above. QUESTION 6 When talking about water quality pH is a) used to describe the particle height in a settling tank. O b) used to deschbe the personal hygiene of the river or stream. O c) a dimensionless number that indicates the turbidity of the water O d) a dimensionless number that indicates the strength of an acidic or a basic solution.

Explanation / Answer

4.

brownion motion is random motion and helps stablize colloids

Ans = c) may have either all negative or positive charge particles to avoid segregation

5.

c) It scatters a beam of light in all directions called tyndall effect.

Can be seen in cinema theaters

6.

d) it is a dimensionless no. that indicates acdity or basicity of a solution

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