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Hydrocarbons that contain a double or triple bond between carbons are considered unsaturated because

Sagot :

Answer:

alkenes and alkynes are considered as unsaturated hydrocarbons because they are capable of reacting with hydrogen in the presence of a catalyst to form a saturated hydrocarbon (alkanes)

Explanation:

A saturated compound contains a chain of carbon atoms joined by single bonds, with hydrogen atoms attached to each carbon atom.  

Propane for example, CH₃-CH₂-CH₃.  

It is saturated because all the carbon atoms holds maximum number of hydrogen atoms.  

Alkenes such as Propene (CH₂=CH-CH₃) and alkynes like Propyne,

(CH₃-C≡C-H) are unsaturated because the central carbon atoms contain less number of hydrogen atoms than they possibly could.