Answer:The correct answer is Addition reaction.
Explanation:
Addition reaction; The reaction in which one molecule combines with smaller molecule to give a single. When propene is converted into an alkyl halide addition reaction will take place.
\(CH_2=CH-CH_3+HX\rightarrow CH_3-CHX-CH_3\)
Where as in condensation reaction two larger molecule fuse together with release of smaller molecules.
In Elimination reaction in which sum molecules are eliminated from the compounds.
in substitution reaction , is same as of single displacement reaction.
