1. I-Hydrogenation catalyst, ilungele isibopho esiphindwe kabili, isibopho esiphindwe kathathu, i-hydrocarbon enamakha, i-carbonyl, i-nitrile, ukunciphisa i-nitro
Izinto ezinhle kakhulu ezimunca i-hydrogen
3. Ama-resistors ebangeni eliphansi lokumelana embonini yezogesi
4. Izinto zokusetshenziswa ze-potentiometer nezinye izakhi nezinto eziwugqinsi zesekethe yefilimu embonini ye-elekthronikhi