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Chemical Reactions - Corrosion

Total questions: 12

Worksheet time: 10mins

Name
Class
Date
1.

Whats is corrosion?


Please select CORRECT answer.

a)

Elecctrochemical process by which a metal returns to its natural state

b)

The process of eroding or being eroded by wind, water, or other natural agents

2.

What is oxidation?

a)

A reaction involving oxygen

b)

A reaction involving non-metals

3.

Rusting is a _____________ process.

a)

Mechanical

b)

Chemical

c)

Physical

4.

What two things cause Iron to Rust ?

a)

Air and Oxygen

b)

Oxygen and Water

c)

Water and Carbon dioxide

d)

Carbon dioxide and Air

5.
Which of the following metals is very unreactive and unlikely to corrode. 
a)
Copper
b)
Gold
c)
sodium
d)
Potassium
6.

Galvanizing is a process of:

a)

Applying a Zinc coating to bare steel

b)

Washing the body with the phosphate coating

c)

dipping a body in E-COAT

d)

Chemically etching primer to steel

7.
To protect iron against corrosion, the most durable metal plating on it, is:
a)
Zinc plating
b)
Nickel plating
8.
Is this an example of corrosion?
a)
Yes
b)
No
9.

Which diagram shows the most favourable conditions for rust to appear on the nail?

a)

A

b)

B

c)

C

d)

D

10.

two elemants joined together is called an __________

a)

inget

b)

element

c)

alloy

d)

gem

11.

From the picture, the highest corrosion is... .

a)

A

b)

B

c)

C

d)

D

12.

Rusting is a special term, given to the corrosion metal is... .

a)

Au

b)

Pt

c)

Fe

d)

Ag