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dispersion phase

Total questions: 17

Worksheet time: 11mins

Name
Class
Date
1.

In a ______________, one substance is dissolved in another substance.

a)

solution

b)

suspension

c)

colloid

2.

Milk and gelatin are examples of __________________.

a)

suspensions

b)

colloids

c)

solutions

3.
Italian dressing is a
a)
solution
b)
suspension
c)
colloid
4.
The substance that does the dissolving is known as the ______
a)
solute
b)
solvent
c)
soluble
d)
insoluble
5.
What type of mixture separates upon standing?
a)
Solution
b)
Alloy
c)
Colloid
d)
Suspension
6.
A colloid is a mixture that contains undissolved particles. 
a)
True
b)
False
7.
type of mixture that doesn't separate on its own but still contains undissolved particles
a)
solution
b)
colloid
c)
suspension
8.

Which substance is MOST soluble at 0 ºC?

a)

KCI

b)

NaNO3

c)

NaCl

d)

Ce2(SO4)3

9.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
10.

A type of mixture where the particles are larger than those in a solution but not heavy enough to settle out.

a)

Homogeneous mixture

b)

Colloid

c)

Suspension

d)

Compound

11.

Which of the following has the largest particles?

a)

Solution

b)

Suspension

c)

Colloid

12.

How can we prove a substance is homogeneous or heterogeneous?

a)

Tyndall effect

b)

Common Sense

c)

We cant prove it.

d)

None of the above.

13.

What type of emulsion is a w/o/w emulsion?

a)

Primary emulsion

b)

Microemulsion

c)

Multiple emulsion

d)

Monoemulsion

14.

The purpose of an emulsifier is to ___________ .

a)

Decrease surface area in a suspension

b)

Reduce the interfacial tension between immiscible phase

c)

Minimize the size of globules

d)

Improve medication taste

15.

The tail of a surfactant molecule is oil-loving or known as ________?

a)

hydrophile

b)

lipophobic

c)

lipophilic

d)

hydrophilic

16.

Oil and Water is an example of a(n)...

a)

Suspension

b)

Emulsion

c)

Colloid

d)

Solution

17.

The result observation labelled as "B" indicates __________ emulsion

a)

Water-in-oil

b)

Oil-in-water

c)

W-o-W

d)

O-w-O