Question

acetic acid has dash like odour

Answer 1

acetic acid has sour taste and pungent smell.

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Answer 2

Acetic acid is a monocarboxylic acid that is enabled with the high end aspects and it mainly has the Acidic character.

When Acetic acid dissolved in the water, then it would undergoes dissociation to form hydrogen (H+) ion. release of a proton with the acetic acid is mainly added with the acidic character.

This also main turns the blue litmus paper red thus indicating acidic in nature.