A metallic element, M, has the following properties: - floats on water - can be cut with a knife - occurs naturally as its chloride, of formula MCl - its oxide dissolves in water to form the hydroxide

Question

CASE_STUDIESExceptions in Physical Properties of Metals and Non-metalsExtraction of Metals High in Activity Series2 sub-questions

The metals obtained from their molten chlorides by the process of electrolytic reduction are :

"Displacement reactions also play a key role in extracting metals in the middle of the reactivity series." Justify this statement with two examples.