Question

a) Which of the following reactions are possible if sodium is more reactive than aluminum,
iron, and lead?
Reaction I: Sodium + Aluminum chloride →Sodium chloride + Aluminum
Reaction II: Sodium chloride + Iron → Iron chloride + Sodium
Reaction III: Sodium + Lead chloride → Sodium chloride + lead
b)Justify your choice

Answer 1

Answer: Reaction I and reaction III are possible.

Explanation: A metal (sodium, here) can only displace another metal if it is placed higher in the reactivity series. As sodium is more reactive than aluminium, iron and lead, it can displace them from their salt solutions.

Answer 2

Answer:

Explanation:

A metal (sodium, here) can only displace another metal from its salt solution if it is placed higher in the reactivity series. As sodium is more reactive than iron, aluminium and lead, it can displace them from their salt solution in reactions I and III whereas in reaction II, no reaction will take place because lead cannot displace sodium as its less reactive.