Question

Fe2O3 + 2Al → Al2O3 + 2Fe
The above reaction is an example of a
(a) combination reaction.
(b) double displacement reaction.
(c) decomposition reaction.
(d) displacement reaction.


NCERT Class 10th Science Chapter 1 Chemical Reactions and Equations

Answer 1

$\mathrm{Fe}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Fe}$

This reaction is an example of a d) displacement reaction.

Here Aluminum is more reactive metal than Fe. Therefore Al will displace Fe from its oxide. This type of chemical reactions in which one of the element displace another is called as displacement reaction. Here less reactive metal is displaced by more reactive metal. Since one-time displacement is occurring, therefore, it is called as single displacement reaction.

Displacement reaction is applicable in both non-metals and metals.  

Answer 2

Answer:

(D)displacement reaction.

Explanation:

The given reaction is an example of a displacement reaction.

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