Formic acid muaj ob qho tib si aldehydic (-CHO) thiab carboxylic (-COOH) pawg ua haujlwm. Li no, nws muab ob qho tib si Tollen thiab Fehling qhov kev kuaj pom zoo.
Puas carboxylic acid puas muab cov tshuaj tollens?
Carboxylic acids tsis muab qhov kev sim no.
Yuav ua li cas cov kua qaub tuaj yeem muab cov tshuaj tollens?
Vim li cas methanoic acid (formic acid) qhia Fehlings thiab Tollen qhov kev sim, txawm tias tsis muaj aldehyde ua haujlwm pab pawg?
Yuav ua li cas carboxylic acids muab qhov zoo tollens kuaj?
- Formic acid tsis yog cov kua qaub ntshiab, nws muaj cov carboxyl pawg nrog rau pawg aldehyde. - Yog li formic acid yuav teb rau kev kuaj tollens.
Yuav ua li cas muab qhov ntsuas tus lej zoo?
Tollens 'test: Cov tshuaj tiv thaiv siv los ntsuas qhov muaj aldehyde lossis a davhlau ya nyob twg α-hydroxy ketone. … Ib lub davhlau ya nyob twg α-hydroxy ketone muab qhov zoo Tollens 'kev sim vim tias Tollens 'reagent oxidizes α-hydroxy ketone rau ib qho aldehyde.
