It may not be so obvious, but skinny jeans donât create the kind of silhouette thatâs most attractive for menâs style. Your want your pants to display a V-shaped silhouette. But skinny jeans tend to compress your legs straight down from the hips â so that shadow âmutatesâ into a Y-shape instead.
Iodoform Reaction. The iodoform test indicates the presence of an aldehyde or ketone in which one of the groups directly attached to the carbonyl carbon is a methyl group. Such a ketone is called a methyl ketone. In the iodoform test, the unknown is allowed to react with a mixture of iodine and base.Hydrogens alpha to a carbonyl group are acidic and will react with base to form the anion, which then reacts with iodine to form an alpha-iodo ketone.uch a ketone is called a methyl ketone. In the iodoform test, the unknown is allowed to react with a mixture of iodine and base. Hydrogens alpha to a carbonyl group are acidic and will react with base to form the anion, which then reacts with iodine to form an alpha-iodo ketone.
If according to your question, the Benedictâs test is positive, it implies that the solution contains a reducing sugar, in which case an orange-red precipitate forms when the Benedictâs reagent is added. Iodine does not react with reducing sugars and so when iodine (which is red) is added to such a solution, no colour change will be observed unless starch is present, in which case a blue/black colour change gives away the presence of starch.