What is meant by the following terms? Give an example of the reaction in each case.
Semicarbarbazone: Semicarbazones are derivatives of aldehydes and ketones produced by the condensation reaction between a ketone or aldehyde and semicarbazide.
Semicarbazones are useful for identification and characterization of aldehydes and ketones.
Semicarbazones are derivatives of aldehydes and ketones and are produced by action of semicarbazide on them in acidic medium.