Questions & Answers

Glacial acetic acid is:
A.100% acetic acid-free of water
B.Solidified acetic acid
C.Gaseous acetic acid
D.Frozen acetic acid

Answer Verified Verified
Hint: We must know that the glacial acetic acid is concentrated form of acetic acid solution and the chemical formula is ${\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}}{\text{.}}$

Complete step by step answer:
We can prepare glacial acetic acid from a pyroligneous liquid that is a product obtained in the distillation of wood. We can also prepare glacial acetic acid by dripping acetic acid over a stalactite of solid acetic acid.
Glacial acetic acid is water-free (anhydrous) acetic acid and is a solution of undiluted acetic acid.
Glacial acetic acid is 100% acetic acid-free from water.
Hence, option (a) is correct.

Additional Information:
The melting point of acetic acid lowers by ${\text{0}}{\text{.}}{{\text{2}}^{\text{o}}}{\text{C}}$ when water is removed from it.
Glacial acetic acid is corrosive and may injure skin on contact,
The reason for its name is because it solidifies into solid acetic acid crystals just cooler than room temperature at ${\text{16}}{\text{.}}{{\text{7}}^{\text{o}}}{\text{C}}{\text{.}}$
The chemical formula of glacial acetic acid is ${\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}}{\text{.}}$
It is a colorless liquid organic compound.
Glacial acetic acid forms ice-like crystals.
Glacial acetic acid is an example of a polar protic solvent and is used as a solvent for recrystallization to distill organic compounds.
Glacial acetic acid is used in cooking as vinegar.
It benefits the digestive system by improving the absorption and utilization of many essential nutrients.
Undiluted acetic acid cannot be used in medicine.

We must understand the difference between acetic acid and glacial acetic acid. Acetic acid shows some presence of water whereas glacial acetic acid is anhydrous acetic acid. Acetic acid, which consists of very low amounts of water, is called anhydrous (water-free) acetic or glacial acetic acid.
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