Respuesta :

Answer

(4) CH3CHCH2

Explanation

Unsaturated hydrocarbons are hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms.

So let us draw these structures quickly to see the one structure with a double or triple bond (unsaturated).

Only (4) CH3CHCH2 is the correct answer, (1) is NOT a hydrocarbon because it has chlorine.

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