How will you classify hydrocabons?

1.	How will you classify hydrocabons?
Answer» Solution :Hydrocarbons are classified into three classes such as Alkanes, ALKENES and Alkynes. (a) Alkenes: These are hydrocarbons, which contain only single bonds. They are represented by the general formula `C_n H_(2n+2)` (where = 1,2,3) Ex: Methane `(CH_4)` (b) Alkenes: The hydrocarbons, which contain one or more C = C bonds are called alkenes. These are unsaturated compounds. They are represented by the general formula `C_nH_2n`. Ex: Ethylene `(C_2H_4)` (c) Alkynes: The hydrocarbons containing carbon to carbon triple BOND are called alkynes. They have the general formula `C_nH_(2n-2)`. Ex: Acetylene `(C_2H_2)` (ii)• Lower hydrocarbons are gases at room temperature E.g. methane, ethane are gases. • Alkanes are least reactive when alkynes are most reactive due to presence triple bond. • Alkanes are saturated whereas alkenes and alkynes are unsaturated. • They are insoluble in water.

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