Question

Single displacement reaction involves:

• A. Oxidation
• B. Reduction
• C. Redox
• D. Heating

Answer 1

The correct option is C

Redox

A single-displacement reaction, also named single-replacement reaction, is a type of oxidation-reduction chemical reaction when an element or ion moves out of one compound and into another - that is, one element is replaced by another in a compound.
For example, here in the given reaction:

$2AgN{O}_3\left(aq\right)$ + $Zn$ $\to$ $2Ag\left(s\right)$ + $Zn({NO}_3{)}_2\left(aq\right)$

Zn is oxidised as it loses electrons, while $2AgN{O}_3$ is reduced as it gains electrons.