Go Back   Chemistry Help Forum > Chemistry Forums > Undergraduate Chemistry Forum

Undergraduate Chemistry Forum Ask your undergraduate chemistry questions here.

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old Nov 7th 2017, 06:59 PM   #1
Aqualad300
Junior Member
 
Join Date: Nov 2017
Location: St. Vincent
Posts: 1
Aqualad300 is on a distinguished road
Oxidation of Aldehyde and Ketones

Hey there,
So we did this lab right and we tested two cabonyl compounds under the aim differentiating between aldehydes and ketones using their reactions with Tollens Reagent, Fehling’s Solution and acidified potassium dichromate.

Carbonyl A tested positive for tollens', fehling's while carbonyl B tested negative for all three.

The question is, why did Carbonyl A test negative for the reaction with acidified potassium dichromate if it was pointing towards being an aldehyde.

The lecturer gave the hint that is in its cyclic form.

If you wish to get the methods feel free to contact me
Modify message
Report to moderator 207.191.242.247
Aqualad300 is offline   Reply With Quote
 

  Chemistry Help Forum > Chemistry Forums > Undergraduate Chemistry Forum



Thread Tools
Display Modes



Facebook Twitter Google+ RSS Feed