Question

when discussing acids and bases a solution containing a large number of hydroxide ions, by definition, is considered?

Answer 1

Acids are solutions/substances that tend to break off to make a hydrogen (H+) ion when placed in an aqueous solution; i.e. solution with water as its solvent.

Bases, on the other hand, produce a hydroxide ion (OH-) when placed in an aqueous solution. 

Thus, by definition, we can safely assume that a solution containing a large number of hydroxide ions is considered a base.

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Answer 2

According to Arrhenius concept of acids and bases, large no. of hydroxide ions shows Base