Facts lang Flashcards
How is ester formed?
Carboxylic acid + alcohol
Carboxylic Acid + alcohol
Ester + Water
Lucas test is used to?
Differentiate primary,sec,and tert, alcohols.
Lucas test: what type of alcohols are most reactive
secondary and tertiary
Positive result in Lucas test results in??
Oily layer and magkakaroon ng turbidity
Jones Oxidation test (Chromic acid) is used to?
Differentiate primary secondary and tertiary alcohol
Jones oxidation test: positive
Orange/becomes dark green
Jones oxidation test what reacts fastest?
Primary reax fastest then secondary. Tertiary alcohols are non oxidizable
Indication of Oxidation
Addition of Oxygen, Formation of Double bond, Lost of hydrogen is oxidation.
Product of jones oxidation test primary and secondary
Primary : Carboxylic
Secondary : ketone
What reacts fastest in jones oxidation tesT?
Primary reacts fastest tapos secondary. Then tertiary
Brady’s reagent
2,4-dinitrophenylhydrazine
Orig color of brady’s reagent
Orange
Test for oxidizability. Differences aldehyde and ketones
Fehling test
Positive color in fehling’s test
Ideally brick red/red
Aldehyde orig color (unreacted)
Orange
Ketone orig color (blue)
Blue
Fehling reagent color
Dark blue/blue dahil sa CuSO4
Fehling’s test 2 steps
Prep solution & oxidation reaction
Tellen’s test
Silver mirror test (always look out for silver)
Causes deoxygenation of aldehyde to carboxyl
Tollen’s test
Iodoform test
Methyl ketone
Yellow precipitate with antiseptic odor means
May methyl ketone
nakikita sa walls ng test tube yung silver mirror
Tollen’s test
