But many fashion experts say that anyone of any age can wear jeans as long as they're comfortable. But many people say they have a tough time finding the perfect pair of jeans. The survey said one in ten people over 53 try on six pairs and spend five days shopping for a new pair of jeans.
The iodoform test or iodoform reaction is a qualitative chemical test for the detection of ketones and aldehydes carrying an alpha methyl group. The reagents are iodine and sodium hydroxide.Only methyl ketones, or alcohols with the feature: CH3CH(OH)-R may undergo this reaction.The iodoform test or reaction is a chemical reaction where iodoform (CHI3) is produced by the multiple halogenation of a methyl ketone (a molecule containing the R-CO-CH3 group) in the presence of a base. R may be H, alkyl or aryl.
1 To test for starch: A standard test for starch uses iodine. 2  Because iodine is not very soluble in water the first step is to form an iodine reagent by dissolving iodine in water in the presence of potassium iodide, resulting in a linear triiodide ion complex-which is soluble and yellow/orange in colour. Lugol's Solution: An example of an iodine-based product that has been widely used in medicine is Lugol's iodine (developed by French physician Jean Guillaume Auguste Lugol in 1829). 2  This consists of 5 g iodine (I 2), 10 g potassium iodide (KI) and enough distilled water to form a brown solution total volume of 100 mL.