Question

2. Fe, 0, + 2A1 → A1,0, +2Fe
The above reaction is an example of a
(a) combination reaction.
(b) double displacement reaction.​

Answer 1

Reaction :

$\sf Fe_2O_3 + 2Al \Rightarrow Al_2O_3 + 2Fe$

It is a displacement reaction, as Aluminium is displacing iron from its oxide form.

It is not double displacement reaction as iron is not displacing aluminium from any of its compound.

It is not combination because aluminium and iron are not combining together to form a single compound.

Answer 2

Required Answer :-

$\bf Fe_2O_3+2AI\mapsto AI_2O_3 + 2Fe$

The above reaction is an example of a Displacement reaction.

Know More :-

Chemical reaction - A chemical reaction is a reaction is a reaction in which the molecules of substance get changed.

Types :-

There are five types of chemical reaction

I) Combustion reaction

II) Single-Displacement reaction

III) Double-Displcemnet reaction

IV) Combination reaction

V) Decomposition reaction