烷烃CnH2n+2 烯烃CnH2n炔烃CnH2n-2苯及其同系物CnH2n-6醇类CnH2n+2O酮类、醛类CnH2nO一元羧酸、酯类CnH2nO2卤素X2卤代烃CnH2n+iX环烷烃CnH2n纤维素、淀粉（C6H10O5）n
