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8G Corrosion Quick Quiz

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Last updated 5 months ago
20 questions
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Question 1
1.

Which of the following is not a property of most metals?

Question 2
2.

Which of the following statements is true?

Question 3
3.

The product formed when calcium reacts with fluorine is:

Question 4
4.

Which of the following best describes a catalyst?

Question 5
5.

Which of the following metals is so reactive it is stored under oil?

Question 6
6.

Complete the word equation : calcium + water ->

Question 7
7.

The test for hydrogen gas is that it:

Question 8
8.

The products of the reaction of iron and hydrochloric acid are:

Question 9
9.

Look at these diagrams showing some metals in acid. Choose the correct order of reactivity for metals X, Y and Z (most reactive first).

Question 10
10.

Magnesium and potassium both burn in
oxygen. Zinc reacts with oxygen but does
not burn. Potassium burns when added to
water. Magnesium and zinc react with
water but do not burn. What is the order of
reactivity of these metals (most reactive
first)?
Which of the following is the correct order of reactivity with acids (most reactive first)?

Question 11
11.

Which of these pictures shows the particles in a solid, pure metal?

Question 12
12.

Which of the following best describes an alloy?

Question 13
13.

A small amount of tin is added to lead. Compared to lead the melting point of the mixture will be:

Question 14
14.

Compared to the pure metals that they contain, alloys:

Question 15
15.

Name the salt made in the below reaction

Zinc + sulfuric acid --> _________ + hydrogen

Question 16
16.

Aluminium oxide is Al2O3. This means that
for every 2 aluminium atoms there are:

Question 17
17.

Painting stops iron rusting because the
paint:

Question 18
18.

When scratched to remove its surface,
which of the following metals will react
most quickly with the air?

1
Question 19
19.

Give on difference in the particle structure of an alloy compared to a pure metal

2
Question 20
20.

Explain why alloys are harder than pure metals