e/Geminal halide hydrolysis

Information
has gloss	eng: Geminal halide hydrolysis is an organic reaction. The reactants are a geminal dihalide and water or a hydroxide. The reaction product is a ketone or an aldehyde. The first part of the reaction mechanism consists of an ordinary nucleophilic aliphatic substitution to produce a gem-halohydrin. The remaining halide is a good leaving group and this enables the newly created hydroxy group to revert to a carbonyl group expelling the halide. Similar reactions involving any strong electronegative functional group, such as a nitrile, in place of the halide also occur.
lexicalization	eng: Geminal halide hydrolysis
instance of	e/Substitution reaction