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How much do you love magnesium?

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

When was magnesium discovered?

a)

1721

b)

1774

c)

1808

d)

1830

2.

When was pure magnesium was first produced by Antoine Bussy?

a)

1721

b)

1774

c)

1808

d)

1830

3.

When was magnesium first isolated by Sir Humphrey Davy?

a)

1721

b)

1774

c)

1808

d)

1830

4.

Approximately how many kgs of magnesium are in Volkswagen cars?

a)

15 kg

b)

20 kg

c)

25 kg

d)

30 kg

5.

What is magnesium's crystalline structure?

a)

Face centred cubic (FCC)

b)

Body centred cubic (BCC)

c)

Hexagonal close packed (HCP)

6.

AZ31 is a magnesium alloy. It is...

a)

~3% Arsenic & 1% Zinc

b)

~3% Aluminium & 1% Zinc

c)

~3% Aluminium & 1% Zirconium

d)

~3% Arsenic & 1% Zirconium

7.

Which phase is the intermetallic phase in AZ31?

a)

alpha-phase

b)

beta-phase

c)

gamma-phase

d)

delta-phase

8.

When magnesium corrodes in water what gas is evolved?

a)

Hydrogen (H2)

b)

Oxygen (O2)

c)

Carbon dioxide (CO2)

d)

Ozone (O3)

9.

Magnesium forms a surface film that provides some protection. Which of the following does not form?

a)

MgO

b)

MgO2

c)

Mg(OH)2

d)

CMgO3

10.

According to Forbes magazine, what arguments should Raymond use when he inevitably lobbies Matt Carrick for a four-day work week?

a)

From a financial perspective, research indicates that moving to a four-day workweek can reduce overhead and other costs to businesses

b)

Worker productivity and employee satisfaction can rise

c)

Workforce talent, wellness and work-life balance may improve

d)

All of the above