Question

In water what happens to a base?

Answer 1

Your answer would be B. It forms hydrogen ions (H+)

Answer 2

Answer: It forms hydroxide ions $(OH^-)$

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions $(OH^-)$ when dissolved in water and an acid is defined as a substance which donates hydrogen ions $(H^+)$ in water.

The dissociation of an acid is represented as:

$HX\rightarrow H^++X^_$

The dissociation of a base is represented as:

$BOH\rightarrow B^++OH^_$