COLLOIDS

Which of the following is an example of a colloid?

• mayonnaise

• cooking oil

• soft drinks

• bubbles in water

What phenomenon occur when dispersed colloid particles scatter light?

• miscible

• Tyndall effect

• shaft effect

• immiscible

What example of colloid has dispersed solid particles in gas?

• milk

• smoke

• gelatin

• blood

What is the most abundant particle in a colloid?

• dispersing mediums

• miscible

• dispersing phases

• immiscible

Why is milk categorized as emulsion?

• because settling cannot separate the components of homogenized milk.

• because settling can separate the components of homogenized milk

• The colloid's particles of milk are larger.

• The colloid's particles are smaller.

Soda pop, whipped cream, and beaten egg whites are examples of what

type of colloids?

• foam

• Emulsion

• Sol

• Aerosol

How would you differentiate a colloid mixture from a solution?

• The colloid's particles are larger.

• The colloid's particles are smaller.

• A colloid has a positive charge.

• A colloid has a negative charge.

A colloid is a stable combination of particles of one substance that are

dissolved or suspended in a second substance.

• True

• False

• Maybe

• None of these

An _________ is a sol with the continuous phase a gas. Fog is an _________ of

water droplets.

• aerosol

• emulsion

• sol

• foam

An _________ is a sol in which the suspended particles are liquid droplets and

the continuous phase is also a liquid. The 2 phases are immiscible, otherwise

a solution would form.

• aerosol

• emulsion

• sol

• foam