Ôn tập chương 4

Hiểu bài

Alkanes have formula $C_nH_{2n+2}$ and only single bonds in an open chain. Alkenes have $C_nH_{2n}$ and one double bond; alkynes have $C_nH_{2n-2}$ and one triple bond. The benzene homologous series has $C_nH_{2n-6}$ for $n\ge6$. Alkane chemistry includes substitution, cracking, reforming and oxidation. Alkenes and alkynes undergo addition and oxidation, while arenes undergo substitution, addition and oxidation. Preparation routes include petroleum fractionation, ethanol dehydration, cracking, calcium carbide and reforming.