The reactivity series of metals test questions - WJEC

1

Which list shows the metals in the correct order of increasing reactivity?

Iron \(\textless\) aluminium \(\textless\) zinc

Iron \(\textless\) zinc \(\textless\) aluminium

Zinc \(\textless\) aluminium \(\textless\) iron

2

Why can heating with carbon not be used to extract aluminium from aluminium ores?

Aluminium is unreactive

Aluminium forms an oxide

Aluminium is too reactive

3

Which metal is found uncombined in the Earth's crust?

Gold

Zinc

Magnesium

4

Which statement about the reactivity series is correct?

Metals at the bottom of the reactivity series lose electrons more easily than metals at the top of the series

Metals at the top of the reactivity series react less vigorously than metals at the bottom of the series

Metals at the top of the reactivity series lose electrons more easily than metals at the bottom of the series

5

Which of these metals is less reactive than hydrogen?

Copper

Iron

Magnesium

6

Here are two displacement reactions:

A + BSO₄ → ASO₄ + B

C + ASO₄ → CSO₄ + A

What is the correct order of reactivity of the metals, A, B and C?

C > B > A

C > A > B

B > A > C

7

The order of reactivity for three metals is magnesium > zinc > copper, where magnesium is the most reactive. Which of these equations represents a reaction that cannot occur?

Zinc + magnesium chloride → zinc chloride + magnesium

Zinc + copper(II) chloride → zinc chloride + copper

Magnesium + copper(II) chloride → magnesium chloride + copper

8

Zinc is below carbon in the reactivity series. Which method could be used to extract zinc from its ore?

Electrolysis only

Reduction with carbon or carbon monoxide only

Electrolysis or reduction with carbon or carbon monoxide

9

Why does aluminium appear to be less reactive than it actually is?

Aluminium reacts quickly with oxygen to form an unreactive oxide layer

Aluminium will only react with certain chemicals

Aluminium is close to the border between metals and non-metals

10

When an iron nail is placed into copper(II) sulfate solution, what would happen to the nail over time?

A silver coating would appear around the nail

A brown coating would appear around the nail

The nail would disappear