To detect the presence of Carboxylic group in the given organic compound.
Experiment
– 12
Class – XII
Subject – Chemistry
Aim:-
To detect the presence of Carboxylic group in the given
organic compound.
Apparatus:-
Test tube, test tube stand, test tube holder, burner, beaker,
litmus paper, match box, watch glass etc.
Detection of Carboxylic Group
Sr. No |
Experiment |
Observation |
Inference |
1. |
Litmus Test: Add 1 drop of given organic compound on blue
litmus paper. |
Blue litmus
change into red by Both A & B. |
Carboxylic
acid [-COOH] group may be present. |
|
R – C – OH + H2O à R – C – O - + H3O+ |
||
2. |
NaHCo3 Test: To aqua
solution of compound dil. NaHCo3 was added. |
Brisk
efferrensace of a colorless gas evolved in compound B which turned lime water
milky. |
Carboxylic
acid [-COOH] group confirmed |
|
RCOOH + NaHCo3 à RCOONa + Co2↑ + H2O |
||
3. |
Ester formation test: To 1 ml of
organic compound ethanol was added & 2 drops of conc. H2So4
mixture was warmed in water bath for 10 – 15 minutes cooled & pour the
content to aqua solution Na2Co3 in beaks smell it |
Pleasant
fruity smell was detected due to presence of the ester in the compound |
Carboxylic
acid [-COOH] group confirmed |
|
|
||
|
RCOOH + C2HSoH à RCOOC2 H5 + H2O |
Conclusion:-
On the basics of above test we conclude that compound contains Carboxylic group.
S. No. |
Name
of Experiment |
Link |
1. |
To prepare 250 ml of M/20 of oxalic
acid solution. |
|
2. |
To determine the molarity and Strength
of KMnO4 solution by treating with standard solution oxalic acid |
|
3. |
To determine the molarity and strength
of KMnO4 solution by treating with standard solution of Mohr’s
Salt. |
|
4. |
To detect acid and Basic radical to
given salt (in Lead Acetate). |
|
5. |
To detect acid and Basic radical to
given salt (In Strontium Chloride). |
|
6. |
To detect acid and Basic radical to
given salt (In Aluminum Chloride). |
|
7. |
To detect acid and basic radical in
given salt (In Ammonium Phosphate). |
|
8. |
To detect acid and basic radical in
given salt (In Barium Nitrate). |
|
9. |
To detect the acid and basic radical
in given salt (Magnesium Sulphate). |
|
10. |
To detect the acid and basic radical
in given salt (calcium Chloride). |
|
11. |
To detect the presence of phenolic group
in organic compound. |
|
12. |
To detect the presence of carboxylic
group in the given organic compound. |
|
13. |
The distinguish between Aldehyde and
Ketonic group in given compound A & B. |
|
14. |
To detect the presence of Alcoholic
group. |
|
15. |
To detect the presence of
Carbohydrate, Protein, Starch in given compound A, B, & C. |
|
16. |
To prepare Potash alum from Scrap
Aluminum. |
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