Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Chemistry Revision

Total questions: 50

Worksheet time: 34mins

Name
Class
Date
1.

Neutralization is a reaction between

a)

Two acids

b)

Two bases

c)

One acid and one base

d)

None of them

2.

Common salt is

a)

Acidic

b)

Neutral

c)

Basic

d)

all of them

3.

Taste of acid is

a)

Bitter

b)

Soupy

c)

Sour

d)

Sweet

4.

Common salt is

a)

Acidic

b)

Neutral

c)

Basic

d)

all of them

5.

Taste of acid is

a)

Bitter

b)

Soupy

c)

Sour

d)

Sweet

6.

Lemon drop turns

a)

Red litmus into blue

b)

No reaction

c)

Blue Litmus into red

d)

All of them

7.

Which is not the product of neutralization process

a)

Water

b)

Heat

c)

Salts

d)

Sugar

8.

How many type of Litmus is there

a)

One

b)

zero

c)

Five

d)

two

9.

Name the acid present in our stomach.

a)

Sulphuric acid

b)

Hydrochloric acid

c)

Nitric acid

d)

Carbonic acid

10.

Which of the following values would represent the pH of a strong base?

a)

1

b)

8

c)

7

d)

13

11.
an aqueous soln turns red lithmus blue . excess addition of which of the following would reverse the change
a)
baking powder
b)
lime
c)
ammonium hydroxide solution
d)
HCL
12.
An extremely strong acid would have a pH of...
a)
1
b)
7
c)
9
d)
14
13.
A neutral substance would have pH of...
a)
8
b)
7
c)
6
d)
14
14.
Indicators change color in the presence of a(n) _______________.
a)
acid or base
b)
buffer
c)
water molecule
d)
ester
15.
A base has a _________________.
a)
sour taste
b)
positive ion
c)
slippery feel
d)
pH of 5
16.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
17.
If a solution is neither acidic or basic it has a pH of _____________.
a)
1
b)
13
c)
6
d)
7
18.
What elements make up Copper sulphate? CuSO4
a)
copper, sulphate
b)
copper, sulphur
c)
copper, sulphur and oxygen
d)
copper and oxygen
19.
Magnesium and hydrochloric acid are mixed together in a beaker, hydrogen is produced as well as magnesium chloride.
Choose correct word equation
a)
magnesium chloride + hydrogen --> magnesium + hydrochloric acid
b)
magnesium + hydrochloric acid --> magnesium chloride + hydrogen
20.
Iron + Hydrochloric acid --> ?
a)
iron sulfate + water
b)
iron + hydrogen
c)
iron chloride + hydrogen
d)
iron chloride + water
21.
Salts that are made with carbonic acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
22.
acid + metal ----->
a)
salt + hydrogen
b)
salt + water + carbon dioxide
c)
salt + water
d)
salt + carbon dioxide
23.
Magnesium + sulphuric acid --> ?
a)
magnesium sulfate + water
b)
magnesium sulfate + hydrogen
c)
magnesium chloride + hydrogen
d)
magnesium chloride + water
24.
Zinc + nitric acid --> ?
a)
zinc sulfate + water
b)
zinc sulfate + hydrogen
c)
zinc nitrate + hydrogen
d)
zinc chloride + water
25.
Salts produced by the reactions of hydrochloric acid are known as... 
a)
chlorines
b)
nitrates
c)
chlorides
d)
bromides
26.
Which of the following is the most reactive in water?
a)
Lithium
b)
Sodium
c)
Potassium
27.

Which equation shows the displacement of bromine by chlorine?

a)

2NaBr + Cl2 → 2NaCl + Br-

b)

NaBr + Cl- → NaCl + Br2

c)

2NaBr + Cl2 → 2NaCl + Br2

d)

NaBr + 2Cl- → NaCl + 2Br-

28.
Why does a catalyst increase the rate of reaction?
a)
it produces extra energy for the reactants
b)
it increases the speed of the reactant particles
c)
it increases the frequency of particle collisions
d)
it reduces the activation energy of the reaction 
29.

Choose the least reactive metal

a)

calcium

b)

magnesium

c)

iron

d)

copper

30.

What does displacement mean?

a)

A chemical reaction where a less reactive metal takes the place of a more reactive metal in a compound.

b)

A chemical reaction where a more reactive metal takes the place of a less reactive metal in a compound.

c)

A more reactive metal is removed from a compound.

31.

Magnesium chloride + Sodium → ?

a)

Sodium chloride + Magnesium

b)

Magnesium chloride + Sodium (No change)

c)

Sodium magnesium + Chlorine

32.

Lithium chloride + Iron → ?

a)

Lithium chloride + Iron (No change)

b)

Iron chloride + Lithium

c)

Lithium oxide + hydrogen

33.
Which of the following is arranged according increasing reactivity?
a)
Mg > Li > Na > K
b)
Mg > Na > Li > K
c)
Na > Li > Mg > K
d)
K > Mg > Na > Li
34.

Rust is an example of _______________.

a)

only a physical change

b)

a scratch on a car

c)

a chemical change

d)

a change from evaporation to condensation

35.

True or false? Chemical reactions are easily reversible

a)

True

b)

False

36.

True or false: A change in state is a chemical reaction

a)

True - something melting would be an example of a chemical reaction

b)

False - a change in state is a physical change

37.

In a word equation, the starting chemicals are called...

a)

reactants

b)

products

c)

ingredients

38.

A material that burns to transfer energy is called a...

a)

compound

b)

wood

c)

fuel

d)

petrol

39.

What is the scientific term given when something burns?

a)

a fuel

b)

flammable

c)

combustion

d)

heating

40.

What does a fuel need in order to burn?

a)

fuel

b)

electricity

c)

oxygen

d)

hydrogen

41.

Sometimes, compounds can be broken down into simpler substances. What type of reaction is this?

a)

combustion

b)

oxidation

c)

decomposition

d)

displacement

42.

In the thermal decomposition of calcium carbonate:

Calcium carbonate --> Calcium oxide + ?

HINT: gas

a)

oxygen

b)

calcium

c)

carbon monoxide

d)

carbon dioxide

43.

What is the conservation of mass?

a)

mass of reactants > mass of products

b)

mass of reactants < mass of products

c)

mass of reactants = mass of products

44.

magnesium + oxygen --> magnesium oxide

If you started with 5g of magnesium and 2.5g of oxygen, what mass of magnesium oxide would be produced?

a)

5g

b)

2.5g

c)

7.5g

d)

10g

45.

When energy is transferred from the substances to the surroundings during a chemical reaction, what type of reaction is this?

a)

endothermic

b)

exothermic

c)

decomposition

d)

combustion

46.

In an endothermic reaction is energy transferred to the surroundings or to the substances?

a)

surroundings

b)

substances

47.

In a chemical reaction, the temperature is measured and it appears to increase. Is this an example of an exothermic or endothermic reaction?

a)

exothermic

b)

endothermic

48.

Which is NOT an example of something you could observe that would suggest a chemical reaction is taking place?

a)

melting

b)

fizzing

c)

smells

d)

temperature change

49.
Is this balanced?
Al + O2 → 2Al2O3
a)
Yes
b)
No
50.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4

Similar Resources on Wayground

KSN-K IPA

50 questions

KSN-K IPA

quiz

Worksheet

•

4th - 6th Grade

2nd 9 Weeks Exam

55 questions

2nd 9 Weeks Exam

quiz

Worksheet

•

KG - University

Matter

50 questions

Matter

quiz

Worksheet

•

KG - Professional Dev...

Plants

51 questions

Plants

quiz

Worksheet

•

2nd - 5th Grade

Discover

52 questions

Discover

quiz

Worksheet

•

1st Grade - University

AQA GCSE CHEMISTRY - CHEMICAL CHANGES

48 questions

AQA GCSE CHEMISTRY - CHEMICAL CHANGES

quiz

Worksheet

•

KG - University

Metals and Non Metals

50 questions

Metals and Non Metals

quiz

Worksheet

•

KG - University

Ôn tập học kỳ I- Hóa 8

52 questions

Ôn tập học kỳ I- Hóa 8

quiz

Worksheet

•

1st - 10th Grade