The reactivity series shows metals in order of reactivity. The reactivity of a metal can be worked out by studying its reactions, both in competition reactions and displacement reactions.
Which of these metals is less reactive than hydrogen?
What happens to the electronic structure of a metal when it reacts?
The metal loses electrons to form a negative ion
The metal loses electrons to form a positive ion
The metal gains electrons to form a positive ion
Which equation shows the correct reaction of magnesium with steam?
Mg(s) + H2O(g) → MgO(s) + H2(g)
Mg(s) + 2H2O(g) → Mg(OH)2(s) + H2(g)
Mg(s) + 2H2O(g) → MgO2(s) + 2H2(g)
What is unusual about the reactivity of aluminium?
It only reacts with water and not with acids
It is totally unreactive
It forms an unreactive oxide layer
What name is given to metal containing compounds found in rocks?
Which of these is a description of oxidation?
The gain of oxygen
The loss of oxygen
The gain of hydrogen
Why does the thermite reaction produce iron in liquid form?
The iron has a low melting point
The iron forms a solution
The reaction produces lots of heat
In the reaction Mg + CuO → MgO + Cu, which element is displaced?
Here are two displacement reactions:
A + BSO4 → ASO4 + B
C + ASO4 → CSO4 + A
What is the correct order of reactivity of the metals, A, B and C?
C > B > A
C > A > B
B > A > C
Which of these equations shows reduction taking place? - Higher
Mg → Mg2+ + 2e
Cu - 2e → Cu2+
Cu2+ + 2e → Cu