Class 12 | Chemistry | Organic Distinction Tests Class 12 Notes | EduRev

Class 12 : Class 12 | Chemistry | Organic Distinction Tests Class 12 Notes | EduRev

 Page 1


Grade 12   
COMMON DISTINCTION TESTS IN ORGANIC CHEMISTRY 
I. R – Cl vs R – Br vs R – I (R ? alkyl or aryl) 
SNo. Test R – Cl R – Br R – I 
a) Dil 
AgNO
3 
 
  
b) NH
4
OH 
test 
   
 
II. Ethylidene chloride (Geminal) vs Ethylene Dichloride (Vicinal) 
SNo. Test 
 
 
a) Aq KOH test 
(Hydrolysis) 
 
 
 
 
 
 
 
 
 
Page 2


Grade 12   
COMMON DISTINCTION TESTS IN ORGANIC CHEMISTRY 
I. R – Cl vs R – Br vs R – I (R ? alkyl or aryl) 
SNo. Test R – Cl R – Br R – I 
a) Dil 
AgNO
3 
 
  
b) NH
4
OH 
test 
   
 
II. Ethylidene chloride (Geminal) vs Ethylene Dichloride (Vicinal) 
SNo. Test 
 
 
a) Aq KOH test 
(Hydrolysis) 
 
 
 
 
 
 
 
 
 
Grade 12   
 
III. CHCl
3
 vs CH
3
Cl/CCl
4
/CH
3
OH 
SNo. Test CHCl
3 
CH
3
Cl/CCl
4
/CH
3
OH 
a) Carbylamine 
test 
 
 
 
 
No reaction 
 
IV. CH
3
 – CH
2
 – OH (Alcohol) vs CH
3
 – O – CH
3
 (Ether) 
SNo. Test CH
3
 – CH
2
 – OH CH
3
 – O – CH
3 
a) Na metal test  
 
 
 
 
b) Iodoform test 
(for alcohols 
having  
CH
3
 –CH – OH)  
 
 
 
 
 
V.  
 
SNo. Test 
  
 
 
Page 3


Grade 12   
COMMON DISTINCTION TESTS IN ORGANIC CHEMISTRY 
I. R – Cl vs R – Br vs R – I (R ? alkyl or aryl) 
SNo. Test R – Cl R – Br R – I 
a) Dil 
AgNO
3 
 
  
b) NH
4
OH 
test 
   
 
II. Ethylidene chloride (Geminal) vs Ethylene Dichloride (Vicinal) 
SNo. Test 
 
 
a) Aq KOH test 
(Hydrolysis) 
 
 
 
 
 
 
 
 
 
Grade 12   
 
III. CHCl
3
 vs CH
3
Cl/CCl
4
/CH
3
OH 
SNo. Test CHCl
3 
CH
3
Cl/CCl
4
/CH
3
OH 
a) Carbylamine 
test 
 
 
 
 
No reaction 
 
IV. CH
3
 – CH
2
 – OH (Alcohol) vs CH
3
 – O – CH
3
 (Ether) 
SNo. Test CH
3
 – CH
2
 – OH CH
3
 – O – CH
3 
a) Na metal test  
 
 
 
 
b) Iodoform test 
(for alcohols 
having  
CH
3
 –CH – OH)  
 
 
 
 
 
V.  
 
SNo. Test 
  
 
 
Grade 12   
a) Lucas 
Test 
(Conc. 
HCl + 
anhyd 
ZnCl
2 
Turbidity appears on 
heating 
Turbidity appears 
within in 5 – 10 
min. 
Turbidity appears 
spontaneously 
No appearance of 
turbidity 
 
 
b) Iodofor
m test 
 
 
  
c) Br
2
 
water 
test 
   
 
d) Neutral 
FeCl
3
 
Test 
   
 
e)  Litmus 
Test 
 
 
 
Turns blue litmus red 
Page 4


Grade 12   
COMMON DISTINCTION TESTS IN ORGANIC CHEMISTRY 
I. R – Cl vs R – Br vs R – I (R ? alkyl or aryl) 
SNo. Test R – Cl R – Br R – I 
a) Dil 
AgNO
3 
 
  
b) NH
4
OH 
test 
   
 
II. Ethylidene chloride (Geminal) vs Ethylene Dichloride (Vicinal) 
SNo. Test 
 
 
a) Aq KOH test 
(Hydrolysis) 
 
 
 
 
 
 
 
 
 
Grade 12   
 
III. CHCl
3
 vs CH
3
Cl/CCl
4
/CH
3
OH 
SNo. Test CHCl
3 
CH
3
Cl/CCl
4
/CH
3
OH 
a) Carbylamine 
test 
 
 
 
 
No reaction 
 
IV. CH
3
 – CH
2
 – OH (Alcohol) vs CH
3
 – O – CH
3
 (Ether) 
SNo. Test CH
3
 – CH
2
 – OH CH
3
 – O – CH
3 
a) Na metal test  
 
 
 
 
b) Iodoform test 
(for alcohols 
having  
CH
3
 –CH – OH)  
 
 
 
 
 
V.  
 
SNo. Test 
  
 
 
Grade 12   
a) Lucas 
Test 
(Conc. 
HCl + 
anhyd 
ZnCl
2 
Turbidity appears on 
heating 
Turbidity appears 
within in 5 – 10 
min. 
Turbidity appears 
spontaneously 
No appearance of 
turbidity 
 
 
b) Iodofor
m test 
 
 
  
c) Br
2
 
water 
test 
   
 
d) Neutral 
FeCl
3
 
Test 
   
 
e)  Litmus 
Test 
 
 
 
Turns blue litmus red 
Grade 12   
 
 
f) 
Victor 
Meyer 
Test 
 
 
 
 
 
VI. 
 
 
SNo. Test 
 
 
 
a) Litmus Test Turns blue Litmus to red 
  
b) Neutral FeCl
3
 
test 
 
  
Page 5


Grade 12   
COMMON DISTINCTION TESTS IN ORGANIC CHEMISTRY 
I. R – Cl vs R – Br vs R – I (R ? alkyl or aryl) 
SNo. Test R – Cl R – Br R – I 
a) Dil 
AgNO
3 
 
  
b) NH
4
OH 
test 
   
 
II. Ethylidene chloride (Geminal) vs Ethylene Dichloride (Vicinal) 
SNo. Test 
 
 
a) Aq KOH test 
(Hydrolysis) 
 
 
 
 
 
 
 
 
 
Grade 12   
 
III. CHCl
3
 vs CH
3
Cl/CCl
4
/CH
3
OH 
SNo. Test CHCl
3 
CH
3
Cl/CCl
4
/CH
3
OH 
a) Carbylamine 
test 
 
 
 
 
No reaction 
 
IV. CH
3
 – CH
2
 – OH (Alcohol) vs CH
3
 – O – CH
3
 (Ether) 
SNo. Test CH
3
 – CH
2
 – OH CH
3
 – O – CH
3 
a) Na metal test  
 
 
 
 
b) Iodoform test 
(for alcohols 
having  
CH
3
 –CH – OH)  
 
 
 
 
 
V.  
 
SNo. Test 
  
 
 
Grade 12   
a) Lucas 
Test 
(Conc. 
HCl + 
anhyd 
ZnCl
2 
Turbidity appears on 
heating 
Turbidity appears 
within in 5 – 10 
min. 
Turbidity appears 
spontaneously 
No appearance of 
turbidity 
 
 
b) Iodofor
m test 
 
 
  
c) Br
2
 
water 
test 
   
 
d) Neutral 
FeCl
3
 
Test 
   
 
e)  Litmus 
Test 
 
 
 
Turns blue litmus red 
Grade 12   
 
 
f) 
Victor 
Meyer 
Test 
 
 
 
 
 
VI. 
 
 
SNo. Test 
 
 
 
a) Litmus Test Turns blue Litmus to red 
  
b) Neutral FeCl
3
 
test 
 
  
Grade 12   
c) Iodoform Test 
  
 
 
 
VII. HCHO vs CH
3
CHO 
SNo. Test HCHO CH
3
CHO 
a) Iodoform test 
 
 
 
 
 
 
b) 
Liquor 
Ammonia Test 
 
 
 
VIII. 
 
SNo. Test 
 
 
CH
3
CHO 
 
 
 
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