سكيمات عملي العضويه السكشن الرابع (لتكمله الكتاب )

[Mohamed7755]

CCl3CH(OH)2

Physical Characters :-
1. Condition → solid-crystalline ,hygroscopic
2. Color → white
3. Odor → Pungent Odor
4. Miscibility :
- H2O → soluble in H2O
- Litmus Paper → no change Comment : neutral compound
- Anhydrous CuSO4 → Comment :


General Reactions :-
1. Dry Heat :
- Change in appearance →melt, Boil , Evaporate
- Degree Of Inflammability → Non-inflammable , Smoky So it maybe : blly halogenated comp.
- Nitration Test → Not applied
- Odor produced → No change
- Residual Ash → present +conc.HCl → no effervescence Comment : Non me tallic comp.
2. Action Of Sodalime →
-on cold sweety odor of chloroform Comment : cloral hydrate
-on hot
3. Action Of 30% NaOH →
-on cold :oily droplets with sweet odor of chloroform Comment : cloral hydrate
-on hot :
4. Action Of NaHCO3 → No effervescence Comment : Not strong acidic compound
5. Action Of FeCl3 → No Characteristic Observation
6. Action Of C.H2SO4 → oily layer on the surface Comment : cloral hydrate
7. Element test : X ( present) N( absent ) S( absent )



Special Tests :-

1-Reduction:-
a)reduction of ammonical silver nitrate:- t 3 ml of silver nitrate solution + few drops of dil. NaOH solution + Add dil. ammonia solution drop by drop until the formed ppt. of silver oxide is almost redissolved. → add few drops of the aldehyde →heat on a water bath → A silver mirror or black ppt. is formed.



b) Fehling test:-- Reagent : Fehling A + Fehling B ( equal amounts ) → deep blue color - sample + Na2CO3 solution + drops of Fehling solution → boil in W.B → green solution turns to red ppt.

2-Release of chloroform by alkali:
resorcinol test:
0.7 g of resorcinol+ 2 ml of dil NaOH solution+ 0.2 g of chloral hydrate→heat to boiling, a red color is produced

3- Addition Of Na-bisulphite
- sample + Na-bisulpite solution → shake and scratch with glass rod → white ppt

Scheme Of Acetone

Physical Characters

1.Condition → Liquid , Mobile
2. Color → Colorless
3.Odor →characteristic Odor
4.Miscibility
- H2O → Miscible
- Litmus Paper → No Change Comment :Neutral compound
- Anhydrous CuSO4 → Change from white to blue Comment : Aqueous solution

General reaction
1. Dry Heat
-Change in appearance → Boil , Evaporate
-Degree Of Inflammability → Inflammable , Non-SmokySo it maybe : Lower aliphatic compound
- Nitration Test → Not applied
- Odor produced → No change
- Residual Ash → Absent Comment : Non met allic compound
2. Action Of Sodalime → Not applied as it's liquid
3. Action Of 30% NaOH → No Characteristic Observation
4. Action Of NaHCO3 → No effervescenceComment : Not strong acidic comp

5Action Of FeCl3 → No Characteristic Observation
6. Action Of C.H2SO4 → No Characteristic Observation
7. Element test : X ( absent ) N( absent ) S( absent )

Special Tests :-

1- Addition Of Na-bisulphite

- sample + Na-bisulpite solution → shake and scratch with glass rod → white ppt

2- Iodoform test :- -1 ml sample + 5 ml dil NaOH + iodine solution. ( drop by drop ) → Shake till persistent yellow color → warm in W.B → yellow crystals of iodoform

3- Na-Nitroprusside test:-

- sample + 2 drops of Na-Nitroprusside +10 ml dil NaOH → red color

Scheme Of benzaphenone

Physical Characters

1.Condition → solid
2. Color → Colorless
3.Odor →characteristic Odor
4.Miscibility
- H2O → insoluble
10%NaOH → insoluble
- NaHCO3 → insoluble
- dil. HCl → Insoluble
- C.H2SO4 → Insoluble Comment : Neutral compound

General reaction
1. Dry Heat
-Change in appearance → melt ,boil , Evaporate
-Degree Of Inflammability → Inflammable , SmokySo it maybe :aromatic compound or highly unsaturated aliphatic compound
- Nitration Test → yellow nitro compound Comment : aromatic compound
- Odor produced → No change
- Residual Ash → Absent Comment : Non met allic compound
2. Action Of Sodalime →
-on cold No Characteristic Observation
-on hot No Characteristic Observation
3. Action Of 30% NaOH →
-on cold :No Characteristic Observation
-on hot :white ppt (canizaro reaction)
4. Action Of NaHCO3 → No effervescenceComment : Not strong acidic comp

5Action Of FeCl3 → No Characteristic Observation
6. Action Of C.H2SO4 → No Characteristic Observation
7. Element test : X ( absent ) N( absent ) S( absent )

Special Tests :-

Formation Of Phenyl hydrazone
- sample + Phenylhydrazine + Acetic acid → Shake for 2 minutes → white ppt. of phenyl hydrazone

[a7med.gamal]

جزاك الله خيراً على التكملة اللي عدنا بننتظرها دي
وجعله في ميزان حساناتك ان شاء الله

[Mohamed7755]

جزاك الله خيراً على التكملة اللي عدنا بننتظرها دي
وجعله في ميزان حساناتك ان شاء الله

جزاك الله خيرا منه يا أحمد

[ahmed djo]

بجد شكرا علي المجهود الغير عادى

[Mohamed7755]

بجد شكرا علي المجهود الغير عادى

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