Reactivity Series And Extraction

Question 1

List the reactivity series

Answer 1

Potassium, sodium, calcium, magnesium, aluminium, (carbon), zinc, iron, lead, (hydrogen), copper, silver, gold, platinum

Question 2

How can you extract metals…

a) above carbon
b) below carbon
c) below hydrogen

Answer 2

a) electrolysis
b) reduction w carbon
c) occur native

Question 3

Oxidation is…

Reduction is…

Answer 3

… addition of oxygen

… removal of oxygen

Question 4

What is reduction and oxidation in terms of electrons?

Answer 4

Oxidation is Loss
Reduction is Gain

O I L R I G

Question 5

What is the formula for iron ore being reduced to iron by carbon monoxide?

Answer 5

Fe2O3 + 3CO -> 2Fe + 3CO2

Question 6

Which of the anode and cathode are -ve and +ve?

Answer 6

Cathode is -ve

Anode is +ve

Question 7

If an ionic compound contains a metal that is MORE reactive than HYDROGEN, electrolysis will produce…

Answer 7

Hydrogen

Question 8

If it is a concentrated halide solution, electrolysis will produce…

Answer 8

A halide

Question 9

If the solution is dilute or there is NO halide, electrolysis will produce…

(+ half equation)

Answer 9

OXYGEN

4OH- - 4e -> 2H2O + O2