EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Sodium is extracted from rock salt (sodium chloride). Write a balanced equation for the reaction. 

Important Questions on Making Use of Metals

EASY
Upper Secondary: IGCSE
IMPORTANT
Zinc blende is an ore of zinc. It is mainly _____ ?
EASY
Upper Secondary: IGCSE
IMPORTANT
Describe the extraction of zinc by electrolysis.
EASY
Upper Secondary: IGCSE
IMPORTANT
Write the equation for the redox reaction that gives iron.
EASY
Upper Secondary: IGCSE
IMPORTANT
What is the 'blast' of the blast furnace?
EASY
Upper Secondary: IGCSE
IMPORTANT
Name the waste gases from the blast furnace.
EASY
Upper Secondary: IGCSE
IMPORTANT
The calcium carbonate in the blast furnace helps to purify the iron. Explain how, with an equation.
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.