org chem lab Flashcards
What is the test for unsaturation?
Bromic Water Test (BR2), Bayer’s Test
What is the Test for Alcohols?
Lucas Test, Oxidation Test, Esterification, Chromic Acid Test, Iodoform, Acrolein Test
What are the Test for Carbonyl?
2,4-dinitrophenylhydrazine, Sodium Bisulfite
Positive result for Bromine Water Test
colorless product
Positive result for Bayers Test
Formation of brown ppt. and decolorizes pink color or KMnO4
Positive result for Lucas Test
Primary Alcohol: no change
Sec. Alcohol: Cloudy after 5 mins
Tert. Alcohol: Cloudy immediately
Positive result for Oxidation Test
Primary Alcohol: Orange to Green color
Sec. Alcohol: Orange to Green color
Tert. Alcohol: No color
Positive result for Esterification Test
Sweet and fruity smell
Positive result for Chromic Acid Test
Orange to green color
Positive result for Iodoform Test
Formation of pale yellow ppt. of iodorom or triiodomethane
Positive result for Acrolein Test
Pungent odor
Positive result for 2,4-dinitrophenylhydrazine Test
red-orange ppt.
Positive result for Sodium Bisulfite Test
Formation of water soluble crystalline
Positive result for Litmus Test?
Blue to Red litmus paper (Acidic)
Positive result for Sodium Bicarbonate Test
Formation of Brisk Effervesence
Positive result for Ester Test
Formation of ester or fruity smell
Positive result for Fischer Esterification
Formation of fruity smell
What is a hydrocarbon
Simplest organic compound
What kind of bond does a saturated hydrocarbon have
Sigma bond
What kind of bond does a unsaturated hydrocarbon have
At least 1 pi bond
Will SHC react with Halogens under high temp or exposure to UV light and is inert towards HCl, H2SO4, KMnO4 and Na2Cr2O7 at room temp?
Yes
What kind of reaction does USH undergo?
Addition
General Formula of Alcohols?
ROH
Alcohols contains what kind of group?
hydroxyl group (OH)
General formula of aldehyde?
RCOH
General formula of ketone?
RCOR
Electron density if C and O atom in carbonyl?
O atom higher, C atom lower
Is carbonyl atom susceptible to nucleophilic attack?
Yes
General formula of Carboxylic acid?
COOH
Carboxylic acid undergo what kind of substitution?
Nucleophilic
C and O atom develops what kind of charge in a Carboxylic Acid?
C atom partial positive, O atom partial negative
Amines are derivatives of?
Ammonia
Name of primary amine?
RNH2
Name of secondary amine?
R2NH
Name of tertiary amine?
R3N
Can amines be aromatic or aliphatic or both?
Both
Boiling point of amines is higher than? but lower than?
higher than alkanes, lower than alcohols
Which amine has the highest boiling point?
Primary>Secondary>Tertiary
How many C atoms in a Amine is soluble in water
1-6 C atoms
What is formed when amine is neutralized by acid?
Amine salts
What are the tests for Amines?
Reaction with Conc. HCl
Reaction w/ BR2
Hinsberg Test
Reaction with HNO2
Azo Dye
Positive result for reaction with conc. HCl
yellow solids
Positive result for Reaction with Bromine Water
Light brown solution with white ppt.
Positive reaction for Hinsberg Test
w/ aniline: solidlike actual oil ppt.
w/ N methylaniline: solid ppt. insoluble
w/ N,N dimethylaniline: oily ins.
Positive result for reaction with HNO2
w/ aniline: rust brown solution
w/ glycine: green solution
