Reactions. Benzaldehyde can be oxidized to benzoic acid; in fact "[B]enzaldehyde readily undergoes autoxidation to form benzoic acid on exposure to air at room temperature" causing a common impurity in laboratory samples.

What is the oxidation product of benzaldehyde?

Benzaldehyde is readily oxidized to benzoic acid and is converted to addition products by hydrocyanic acid or sodium bisulfite.

Which oxidizing agent is used in oxidation of benzaldehyde to benzene?

- Chromyl chloride is used as an oxidising agent in this reaction.