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Y8 Chapter 2

Total questions: 39

Worksheet time: 26mins

Name
Class
Date
1.

Here is chromatography of markers with the paper placed in water. What is true.

a)

Blue dissolves best in water.

b)

Yellow dissolves best in water.

c)

Green dissolves best in water.

d)

Pink dissolves best in water

2.
Whose blood was found at the crime scene?
a)
John
b)
Lisa
c)
Bob
d)
Sure
3.
Why must the base line be drawn in pencil and not pen?
a)
a) Pencil is good at keeping substances in place.
b)
b) Pencil is soluble in water
c)
c) Pencil is insoluble in water
d)
d) Pencil is not coloured
4.
chromatography separates the mixture of dyes on the basis of their ----------------------------
a)
density
b)
solubility
c)
gravity
d)
boiling point
5.

Ink can be separated by a method of -----------------------------------------------

a)

distillation

b)

filtration

c)

chromatography

d)

sedimentation

6.
Two or more substances that are chemically combined is a ___
a)
compound
b)
mixture
c)
solvent
d)
solute
7.
Two or more substances that are mixed together but not chemically combined is a ___
a)
compound
b)
mixture
c)
keratin
d)
chromatography
8.

What is the correct image of paper chromatography???

a)
b)
c)
9.

A substance is soluble if it can be dissolved.

In paper chromatography, the most soluble solute _____________________ .

a)

travels furthest away from the start point

b)

does not move from the start point

c)

stays closest to the start point

d)

can be found in the middle of the chromatogram

10.

Q. On the chromatogram given -------------- is mixture.

a)

orange

b)

black

c)

green

d)

red

11.

Q. chromatography separates the mixture of dyes on the basis of their ----------------------------

a)

solubility

b)

boiling point

c)

boiling point

d)

boiling point

12.

Q. 

ink can be separated by a method of --------------------------------------------

a)

distillation

b)

sedimentation

c)

chromatography

d)

filtration

13.
The maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature.
a)
solubility
b)
concentrated
c)
diluted
d)
surface area
14.
You can make a solution more concentrated by adding __________.
a)
solute
b)
solvent
c)
water
15.
What does it mean to dilute a solution?
a)
lower the concentration of solute per solvent
b)
increase the concentration of solute per solvent
16.

Which one of the following is considered a SOLVENT?

a)

Salt

b)

Water

c)

Salt Water

17.

Which one of the following is considered a SOLUTE?

a)

Salt

b)

Water

c)

Salt Water

18.

Look at the diagram. B is?

a)

Solute

b)

Solvent

c)

Solution

19.

Look at the diagram. A is?

a)

Solute

b)

Solvent

c)

Solution

20.

Substances that do not dissolve in water are called ...................

a)

soluble

b)

insoluble

c)

solution

21.

Define the term insoluble.

a)

Can dissolve in water.

b)

Cannot dissolve in water.

c)

Partially dissolves in water.

22.

Define the term soluble.

a)

Can dissolve in water

b)

Cannot dissolve in water

c)

Partially dissolves in water

23.

In which beaker does salt dissolves faster?

a)

Hot water

b)

Room temperature

c)

Ice watet

24.

Which is the solute in this solution? Tea and honey.

a)

tea

b)

honey

25.
Solubility is defined as
a)
the ability to catch on fire
b)
the ability to be dissolved
c)
the ability to fly.
d)
the ability to get on Mrs. D's nerves.
26.

If I dissolve carbon dioxide in water, what is the solvent?

a)

Carbon Dioxide

b)

There is no solvent

c)

Oxygen

d)

Water

27.
Solutions are composed of __________ .
a)
salts and solutes
b)
solvents and salts
c)
solutes and alloys
d)
solutes and solvents
28.
The substance in which a solute is dissolved
a)
sands
b)
solvent
c)
alloy
d)
negative particles
29.
The substance being dissolved in a solution.
a)
sands
b)
solute
c)
solvent
d)
alloy
30.
a)

solution

b)

solute

c)

solvent

31.
a)

solvent

b)

solute

32.
a)

solute

b)

solvent

c)

solution

33.

Solutes dissolve quicker if you stir them.

a)

true

b)

false

34.

Solutes dissolve quicker in _________ water.

a)

cold

b)

warm

35.
a)

solvent

b)

solute

36.
a)

solvent

b)

solution

c)

solute

37.
a)

solute

b)

solvent

38.
a)

solvent

b)

solute

39.

solute + solvent =

a)

solution

b)

equation

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