Complex sentence: The aniline acetate test is a chemical test to identify the presence of certain carbohydrates, in which they are converted to furfural with hydrochloric acid, which reacts with aniline acetate to produce a bright pink color.
Split into simpler sentences: The aniline acetate test is a chemical test to identify the presence of certain carbohydrates. These carbohydrates may be converted (by hydrochloric acid) to furfural, which reacts with aniline acetate to produce a bright pink color.