Question

What reaction is depicted by the given equation: Au3+ + 3e− Au

Answer 1

Reduction. B is the correct answer

Answer 2

Answer: Reduction

Explanation: Reduction is a chemical reaction in which electrons are gained and thus there is a decrease in the oxidation number.

Oxidation is a chemical reaction in which electrons are lost and thus there is a increase in the oxidation number.

`Au^(3+)+3e^-\rightarrow Au`

This is an example of reduction reaction as the oxidation number of gold has decreased from +3 to zero as the electrons are gained.