Test For Aldehydes Flashcards
(5 cards)
1
Q
What are the two tests used to identify aldehydes?
A
Tollen’s reagent test
Fehling’s solution test
2
Q
Describe the test for Aldehydes using Tollen’s reagent
A
Tollen’s reagent can be used to identify aldehydes
It’s added to the solution being tested and warmed gently
3
Q
Observations of Tollen’s reagent test
A
Positive - silver mirror will form if aldehyde is present
Negative - solution will remain colourless
4
Q
Describe the test for Aldehydes using Fehling’s solution
A
Fehling’s solution is added to the solution being tested
And heated
5
Q
Observations of Fehling’s solution test
A
Positive - brick red precipitate formed if aldehyde is present
Negative - solution remains blue, no observational change
