Kipp's Apparatus is a laboratory instrument that is commonly used for the generation of small volumes of gas. It is named after its inventor, a Dutch pharmacist Jan Baptist Kipp. There are different synonyms used to refer to Kipp's Apparatus. Some of them include Kipp generator, Kipp's generator, Kipp apparatus, or Kipp's gas generator. The instrument operates by passing water through three interconnected chambers, where a chemical reaction occurs to produce gas. The generated gas is then collected in a gas-collecting vessel and can be used for various laboratory experiments. The Kipp's Apparatus is widely used in school science laboratories and industrial manufacturing operations.