When D-glucose reacts with hydroxylamine (\( H_2N - OH \)), it forms an oxime. The aldehyde group of D-glucose reacts with hydroxylamine, resulting in the formation of a stable oxime with the general structure \( R - C = N - OH \), where R represents the rest of the glucose molecule. In this reaction, the glucose aldehyde undergoes a nucleophilic addition to yield the corresponding oxime.
\bigskip