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UP Board Class 11 Chemistry – Hydrocarbons

Hydrocarbons are organic compounds made up of only carbon and hydrogen atoms. They form the basic framework of organic chemistry and are classified into two main types—aliphatic hydrocarbons (alkanes, alkenes, alkynes) and aromatic hydrocarbons (benzene and its derivatives). Alkanes are saturated compounds with single bonds, while alkenes and alkynes are unsaturated, containing double and triple bonds. Their structure determines their chemical reactivity, physical properties, and uses.

Hydrocarbons
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Students learn preparation methods such as hydrogenation, dehydrogenation, cracking, and substitution reactions. Important reactions like addition in alkenes, substitution in alkanes, and polymerization are covered in detail. Aromatic hydrocarbons include benzene, known for its stability and unique resonance structure.