EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

The calcium carbonate in the blast furnace helps to purify the iron. Explain how, with an equation.

Important Questions on Making Use of Metals

EASY
Upper Secondary: IGCSE
IMPORTANT
The slag and waste gases are both useful. How?
EASY
Upper Secondary: IGCSE
IMPORTANT
Which compounds are used in the extraction of aluminium? Say what role each plays.
EASY
Upper Secondary: IGCSE
IMPORTANT
Sketch the electrolysis cell for extracting aluminium.
EASY
Upper Secondary: IGCSE
IMPORTANT
Why do the aluminium ions move to the cathode?
EASY
Upper Secondary: IGCSE
IMPORTANT
What happens at the cathode? Give an equation.
EASY
Upper Secondary: IGCSE
IMPORTANT
The anode is replaced regularly. Why?
EASY
Upper Secondary: IGCSE
IMPORTANT

These terms all describe properties of aluminium. Say what each term means.

a. Malleable.

EASY
Upper Secondary: IGCSE
IMPORTANT

These terms all describe properties of aluminium. Say what each term means.

b. Ductile.