The Reactivity Series Flashcards
1
Q
How can a metal be extracted from its ore chemically?
A
By reduction using carbon
2
Q
What happens when a ore is reduced?
A
Oxygen is removed from it
Eg, Iron (III) Oxide + Carbon -> Iron + Carbon dioxide
3
Q
What do metals HIGHER than carbon in the reactivity series have to be extracted by? What’s a disadvantage?
A
Electrolysis - expensive
4
Q
Metals [ ] carbon in the reactivity series can be extracted by reduction using carbon. This is because carbon can only take the [ ] away from metals which are [ ] reactive than carbon.
A
below
oxygen
less
5
Q
In what is iron oxide reduced?
A
A blast furnace
