Multiple choice Glaceial acetic acid is a mixture of 90 percentage acetic acid and 10% water. 100% acetic acid. 50% acetic acid and 50% water. 10% acetic acid and 90% water. Reveal answer Fill a bubble to check yourself B Correct answer Explanation Glacial acetic acid is pure acetic acid (100%) with no water content. The term 'glacial' refers to its tendency to form solid ice-like crystals at temperatures below 16.6°C. It is not a mixture.