Q.The chemical name of Aspirin is

Aspirin is the trade name for acetylsalicylic acid, formed by acetylating the phenolic -OH group of salicylic acid.

Reasoning: Aspirin is synthesised by treating salicylic acid (2-hydroxybenzoic acid) with acetic anhydride, which acetylates its phenolic -OH group to form an ester linkage, while the -COOH group remains free:

$\text{Salicylic acid} + (CH_3CO)_2O \longrightarrow \text{Acetylsalicylic acid (Aspirin)} + CH_3COOH$ …

BHA (butylated hydroxyanisole) is a synthetic antioxidant added to fats and oils to extend their shelf life.

Butter, being a fat, is prone to rancidity — atmospheric oxygen slowly oxidises the unsaturated fatty-acid components, producing bad-smelling compounds. BHA (butylated hydroxyanisole), a phenolic/anisole-derived antioxidant, is added in small amounts because it readily reacts with (scavenges) the free radicals formed during autoxidation, breaking the oxidation …