Chemistry
(a) Give the structural formulae of acetic acid.
(b) IUPAC name of acetic acid.
(c) What is glacial acetic acid?
Answer
(a) Structural formula of acetic acid is shown below:

(b) Ethanoic acid
(c) Acetic acid that contains a very low amount of water (less than 1%) is called anhydrous (water-free) acetic acid or glacial acetic acid. Its melting point is around 17°C. On cooling it forms a crystalline mass resembling ice and for this reason it is called glacial acetic acid.
Related Questions
What are carboxylic acids? Give their general formula
Write the names of:
(a) first three members of carboxylic acid series.
(b) three compounds which can be oxidised directly, or in stages to produce acetic acid.
Vinegar is greyish in colour with a particular taste. Explain.
Complete:
(a) Vinegar is prepared by the bacterial oxidation of ……………
(b) The organic acid present in vinegar is ……………
(c) The next higher homologue of ethanoic acid is ……………