Question

Why water can be considered as an acid as base

Answer 1

water has H+ and OH-ion.

so it can accept or donate proton.

hence acts as both acid and base.

it is amphoteric in nature

Answer 2

Correct question:

Why water cannot be considered as an acid or a base?

Answer:

Water cannot be considered neither as an acid nor a base because it is neutral in nature. As it's pH value is 7, making it a neutral liquid. Thus, it is neither considered as an acid nor base.