Arrange water, ethanol and, phenol in increasing order of acidity and give reason for your answer.

This is a short answer type question as classified in NCERT Exemplar

Increasing order of acidity is: ethanol < water < phenol.
This is because the phenoxide ion obtained after the removal of H⁺ is resonance stabilised, while the ethoxide ion obtained after the removal of H⁺ is destabilised by +1 effect of ethyl group.