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Chemistry Exam Revision

Total questions: 27

Worksheet time: 3570secs

Name
Class
Date
1.
What coefficient would Fe+2 have in the following reaction?
___ Al + ___ Fe+2 → ___ Al+3 + ___ Fe
a)
1
b)
2
c)
3
d)
6
2.
Is calcium oxidized or reduced in the following reaction? 
2 CaO--> 2 Ca + O2
a)
Oxidized
b)
Reduced
3.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

4.

What is the oxidation number of chlorine in HClO?

a)

0

b)

-1

c)

+1

d)

+5

5.
In the reaction
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________
a)
Reduced
b)
Synthesized
c)
Oxidized
d)
None of the above
6.
If in a reaction, copper is reduced; its number of electrons has:
a)
Increased
b)
Decreased
c)
Remained Constant
d)
Varies Randomly
7.
Consider the galvanic cell given.
Which of the following deductions about this cell is correct?
a)
Oxidation is occurring in half-cell 2
b)
The positive electrode is in half-cell 2
c)
Oxidation is occurring in half-cell 1
d)
The negative electrode is in half-cell 1
8.

In a Galvanic Cell, the anode is...

a)

positive

b)

negative

9.

In a Galvanic Cell, the cathode is...

a)

positive

b)

negative

10.

Oxidation occurs at the...

a)

anode

b)

cathode

11.

Reduction occurs at the...

a)

anode

b)

cathode

12.

In a Galvanic cell, the electrons flow from the...

a)

anode to the cathode

b)

cathode to the anode

13.

In the above Galvanic Cell, which half cell is undergoing reduction?

a)

Cu | Cu2+

b)

Zn | Zn2+

14.
Which are examples of reduction?
a)
I and II
b)
I and III
c)
II and III
d)
I, II and III
15.

A titration works by using a ___________________________ reaction.

a)

Single Replacement

b)

Neutralization

c)

Combustion

d)

Synthesis

16.

A titration can be used to determine the _______________ of a solution

a)

molarity

b)

density

c)

boiling point

d)

reactivity

17.

What is this apparatus used for titration called?

a)

Burette

b)

Volumetric Pipette

c)

Pipette filler

d)

Volumetric flask

18.

What is this apparatus used for titration called?

a)

Burette

b)

Volumetric Pipette

c)

Pipette filler

d)

Volumetric flask

19.

Which solution would you place in a volumetric flask

a)

Standard solution

b)

Unknown concentration solution

c)

Indicator

20.

Which of the following indicators can be used in titration

a)

Phenolphtalein

b)

Universal indicator

c)

Methlyorange

d)

Litmus solution

21.

Burette is washed with

a)

Tap water

b)

Distilled water

c)

Solution to contain

22.

Pipette is washed with

a)

Tap water

b)

Distilled water

c)

Solution to contain

23.
pH greater than 7.
a)
Acids
b)
Bases
c)
All
24.
pH less than 7.
a)
Acids
b)
Bases
c)
All
25.
If the pH of a solution is 5.6 the pOH is
a)
6.5
b)
12.4
c)
8.4
d)
5.6
26.
A  pH and a pOH will add up to:
a)
0
b)
7
c)
14
d)
1.0 x 10-14
27.
What elements have zero electronegativity?
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases

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