<P> This reaction forms the basis of the iodoform test which was commonly used in history as a chemical test to determine the presence of a methyl ketone , or a secondary alcohol oxidizable to a methyl ketone . When iodine and sodium hydroxide are used as the reagents a positive reaction gives iodoform , which is a solid at room temperature and tends to precipitate out of solution causing a distinctive cloudiness . </P>
<P> This reaction forms the basis of the iodoform test which was commonly used in history as a chemical test to determine the presence of a methyl ketone , or a secondary alcohol oxidizable to a methyl ketone . When iodine and sodium hydroxide are used as the reagents a positive reaction gives iodoform , which is a solid at room temperature and tends to precipitate out of solution causing a distinctive cloudiness . </P>
propan 2 ol on reaction with iodine and sodium hydroxide gives
propan 2 ol on reaction with iodine and sodium hydroxide gives
iodoform
iodoform