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.
This page looks at how the triiodomethane (iodoform) reaction can be used to identify the presence of a CH 3 CO group in aldehydes and ketones. Note: This reaction can also be used in testing for the CH 3 CH(OH) group in alcohols.You will find a link to this at the bottom of the page.he chemistry of the triiodomethane (iodoform) reaction. What the triiodomethane (iodoform) reaction shows. A positive result-the pale yellow precipitate of triiodomethane (iodoform) - is given by an aldehyde or ketone containing the grouping: