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.
The reaction of iodine and base with methyl ketones is so reliable that the  iodoform test  (the appearance of a yellow precipitate) is used to probe the presence of a methyl ketone.t is synthesized in the haloform reaction by the reaction of iodine and sodium hydroxide with any one of these four kinds of organic compounds: (i) a methyl ketone: CH 3 COR, acetaldehyde (CH 3 CHO), ethanol (CH 3 CH 2 OH), and certain secondary alcohols (CH 3 CHROH, where R is an alkyl or aryl group).