2. R-OH alcohols Benzyl alcohol Methanol Glycerol Ehanol Aromatic
Aliphatic

4. Physical property Benzyl alc. glycerol ethanol methanol state
True liquid oily
True liquid viscous
True liquid mobily
True liquid
mobily
state
colorless
color
Bitter almond
Odourless
alcoholic
odour

5. Ignition test: Benzyl alc. glecerol ethanol methanol inflammable
inflammability
luminous
Non luminous
smoky
No smoky
volatilization
Apperance change
No change
Color change
Odor change
No residue
residue

6. Miscibility: Methanol, ethanol and glycerol* miscible in H2O.
They do not give any result with red and blue litmus paper
neutral
Benzyl alcohols immiscible in H2O , dil Hcl and 30% NaOH
Glycerol need a lot of water

7. Conc. H2SO4* : no reaction with all except benzyl alc.
Preliminary tests:
soda lime : not done (why)?.
30%NaOH : no reaction.
Fecl3 : no reaction.
Conc. H2SO4* : no reaction with all except benzyl alc.
Benzyl alc+ 4 dps Conc. H2SO4 (on wall) dirty white gelatinous ppt.
Dry test tube

8. General test Oxidation test: (distillate in beaker) ROH RCHO RCOOH
What is this?
Oxidizing agent
reflux
K2Cr2O7 + dil H2SO4 +pumic stone +alcohols acids
(distillate in beaker)
ROH RCHO RCOOH
distillation
why
How to confirm?
equations

9. Specific test ethanol mehanol tests
Wait and warm
Yellow ppt
No yellow ppt.
Iodoform test:
meth. Or eth. +10% NaOH+ xss I2
Heat until fussion
Bad apple odor (ribe apple) ethyl acetate)
Oil of winter green
(vicks odor) with white ppt.(methyl salicylate)
Esterfication test: (meth.+ salic. Or eth.+ acetic. ) +Conc. H2SO4→pour it after heat into beaker contain water

10. Borax test of glycerol Pink color
Borax powder dissolve in water +phenol phthaline (ph.ph) +glycerol→ disappear pink color
Conc. H2SO4 of benzyl alcohol
Dirty white gelatinous ppt.

11. IR O-H Broad streching band at 3500-3200 cm-1
C-H aromatic above 3000cm-1
C-H aliphatic below 3000cm-1