1. There aren’t many Organic reactions that produce color changes, but the reage
ID: 949534 • Letter: 1
Question
1. There aren’t many Organic reactions that produce color changes, but the reagents used in this lab are used for many quick identifications. Benedict’s Reagent can also be used to determine if a simple, reducing sugar is present. Iodine will be used in the next lab to judge unsaturation level. Do some research and determine another use for Schiff’s reagent.
2. Research the essential oils (Lemon, Clove, Spearmint) that were tested and find the names of the aldehydes or ketones that are in the solutions. For example, Thymol is an alcohol found in Thyme
Explanation / Answer
1. Schiff's reagent is used as a qualitative test for aldehydes, the unknown sample is added to the decolorized Schiff reagent; when aldehyde is present a characteristic magenta color develops. Schiff-type reagents are used for various biological tissue staining methods.
2. Lemon oil - Neral - aldehyde ; Linalool,nerol - alcohol
Clove oil - Eugenol - alcohol
Spearmint oil - Linalool, Menthol - alcohol; Carvone - ketone
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.