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Redox/Activity Series Practice

Total questions: 40

Worksheet time: 35mins

Name
Class
Date
1.

What is the oxidation number of chlorine in HClO?

a)

0

b)

-1

c)

+1

d)

+5

2.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

3.

Reduction is the ___________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

4.

What is the oxidation number of nitrogen in N2?

a)

-3

b)

0

c)

+4

d)

-1

5.

What is the oxidation number of iodine in KIO3?

a)

0

b)

-1

c)

+5

d)

+1

6.

Determine the oxidation number of chromate in CrO42-.

a)

+6

b)

0

c)

+2

d)

+3

7.

Which of the following represents oxidation?

a)

C → CH4

b)

Fe3+ → Fe2+

c)

Cl2 → 2Cl-

d)

Zn → ZnO

8.
Which of the following represents reduction?
a)
C →  CO
b)
N2 →  NH3
c)
Zn  →   Zn2+ 
d)
H2 →  H2O
9.

In the reaction Zn + 2HCl --> ZnCl2 + H2

which element, if any, is oxidized?

a)

Zinc

b)

Hydrogen

c)

Chlorine

d)

None

10.
In the reaction
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________
a)
Reduced
b)
Synthesized
c)
Oxidized
d)
None of the above
11.
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
a)
Iron
b)
Fluorine
c)
Oxygen
12.
Based on the activity series, will this reaction occur?
Ni (s) + H2O (l) →
a)
Yes
b)
No
13.
Based on the activity series, will this reaction occur?
Br2 (l) + KI (aq) →
a)
Yes
b)
No
14.
Based on the activity series, will this reaction occur?
Au (s) + HCl (l) →
a)
Yes
b)
No
15.
Based on the activity series, will this reaction occur?
Cd (s) + HCl (aq) →
a)
Yes
b)
No
16.
A mixture contains cobalt metal, copper metal, and tin metal. This mixture is mixed with nickel nitrate. Which metals, if any, will react? 
a)
Cobalt only
b)
Copper only
c)
Tin only
d)
All 3
17.

Predict the product(s) of this reaction (don't worry about balancing):

Li + H2O →

a)

Li2O + H2

b)

LiO + H2

c)

LiOH + H2

d)

Li(OH)2

18.

Predict the product(s) of this reaction (don't worry about balancing):

Mg + HCl →

a)

MgHCl

b)

MgCl2 + H2

c)

MgCl2 + H

d)

MgCl + H2

19.

Predict the product(s) of this reaction (don't worry about balancing):

SrI2 +Br2

a)

Sr + I2Br2

b)

SrBr + I2

c)

SrBr2 + I2

d)

Sr + IBr2

20.

Based on the activity series, which metal could X represent in the reaction below?

X + Ca (NO3)2 --> Ca + X (NO3)2

a)

Ba

b)

Fe

c)

Mg

d)

Zn

21.

Which metal is more reactive than calcium?

a)

magnesium

b)

potassium

c)

silver

d)

aluminum

22.
What  will be the result of the following: 
Br2 + NaF ->
a)
bromine will replace Na
b)
Na will replace Br
c)
Br will replace F
d)
no reaction will occur
23.
What  will be the result of the following: 
Li + NaF ->
a)
Li will replace F
b)
Na will replace Li
c)
Li will replace Na
d)
no reaction will occur
24.
What  will be the result of the following: 
LiBr + Na ->
a)
Li will replace Na
b)
Na will replace Br
c)
Na will replace Li
d)
no reaction will occur
25.
What will be the result of :  Zn + AuCl2->
a)
ZnCl2 +Au
b)
ZnAu + Cl2
c)
no reaction
d)
ClAu + Zn
26.
Will silver react with magnesium chloride solution?
a)
yes
b)
no
27.

What is the solvent in an aqueous solution?

a)

An ionic compound.

b)

Water.

c)

Ions.

d)

Acid.

28.

With what type of bond is the water molecule held together?

a)

Polar covalent bond.

b)

Ionic bond.

c)

Non-polar covalent bond.

d)

Electronegative bond.

29.

What is meant by the term "electrolyte"?

a)

A liquid which contains free ions and can conduct an electrical current.

b)

An ionic compound which can conduct electricity.

c)

A salt such as NaCl(s)

30.

Which of these does not determines the strength of an electrolyte?

a)

The concentration of the ions in the solution.

b)

The type of substance.

c)

The amount of solute added to water.

d)

The temperature of the solvent.

31.

Which of the following solutions will conduct electricity?

a)

Calcium chloride

b)

Copper sulphate

c)

Glucose

d)

Tap water

32.
Which of the following is an electrolyte?
a)
CH4
b)
I2
c)
LiBr
d)
CO
33.
Is AgCl soluble or insoluble?
a)
Soluble
b)
Insoluble
c)
Neither 
d)
Both
34.
What is the generic equation for a double replacement reaction? 
a)
AB + CD ---> AD + CB
b)
AB + CD ---> DACB
c)
AB + CD ---> ABC
d)
AB + CD ---> D + CBA
35.
What are the products formed in this double replacement reaction: Na2S + 2HCl
a)
Na2H + SCl2
b)
ClNa + SH2
c)
2NaCl + 2HS
d)
2NaCl + H2S
36.
Magnesium reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas this happens because? 
a)
Magnesium is higher on the reactivity series then hydrogen
b)
magnesium is more reactive than hydrogen
c)
magnesium is able to break the bond between HCl and form MgCl2
d)
both b and c are correct
37.
Provides evidence that a chemical reaction has occurred. 
a)
dissolving 
b)
melting
c)
formation of a gas
d)
bending
38.

Which reaction is NOT a neutralisation reaction

a)

Metal + acid

b)

Acid + Base

c)

Acid + Metal Carbonate

39.

Which of the following is a neutralization reaction?

a)

2Na + Cl2 → 2NaCl

b)

CH4 + 2O2 → CO2 + 2H2O

c)

HCl + KOH → KCl + H2O

d)

CaCO3 → CO2 + CaO

40.

HCO3- + H2O → H3O+ + CO32-

Water is acting as

a)

a Bronsted Lowry base

b)

a Bronsted Lowry acid

c)

a strong acid

d)

a weak acid