Qualitative Analysis for the identification of the Carboxylic functional group in the Organic Sample

NOTE: E&OE, means errors and omissions are expected and excepted, in other words, if there is any error in the following arti...



NOTE: E&OE, means errors and omissions are expected and excepted, in other words, if there is any error in the following article, the same has to be corrected by the user or the beneficiary accordingly.
This article contains works derived from other reputed works of huge publication houses and notes that were made by me in my school life.These articles are just to help people who need these articles desperately and urgently. Any queries, complaints, and corrections will be enthusiastically entertained.



AIM: Qualitative analysis for the identification of the functional group in the organic sample.

SAMPLE: An organic compound containing carboxylic group.

(A) PRELIMINARY TEST:

Color – (what color is it)
Physical State – (the way the compound is formed up)
Odor – (the smell it posses)
Ignition Test 
Experiment
Observation
Inference
(For liquid sample) A clean glass rod is taken and dipped in the given sample. The glass rod is then held at the mouth of the Bunsen flame.
(For liquid sample) No sooty flame is obtained.
(For liquid sample) The sample is aliphatic in nature.
(for solid samples) A clean wet glass rod is taken and rolled in the sample until the particles of the solid stick to it. The glass rod is then held at the mouth of the Bunsen flame.
(for solid samples) A sooty or smoky flame.
(for solid samples) The sample is aromatic in nature.

(B) CONFIRMATORY TEST FOR THE IDENTIFICATION OF THE CARBOXYLIC FUNCTIONAL GROUP.


TEST NO. 1
LITMUS TEST
Experiment
Observation
Inference
A drop/paste of the sample is taken on moist litmus paper (blue or red).
Blue litmus turns red.
Sample is acidic in nature.

TEST NO. 2
Sodium Carbonate (Na2CO3) or Sodium Bicarbonate (NaHCO3)
Experiment
Observation
Inference
(for a liquid sample) A pinch of sodium carbonate/bicarbonate is added to a small amount of the sample taken in the test tube.
 (for a liquid sample) Brisk effervescence is evolved.
(for a liquid sample) CO2 gas is evolved or liberated. Therefore, carboxylic group in the sample is confirmed.
(for a solid sample) A solution of sodium carbonate is prepared in a small amount of the given sample is added to it and the test tube is shaken.
(for a solid sample) Brisk effervescence is evolved.
(for a solid sample) CO2 gas is evolved or liberated. Therefore, carboxylic group in the sample is confirmed.

TEST NO. 3
Esterification
Experiment
Observation
Inference
To 0.5mg/0.5ml of the sample taken in a clean test tube, equal amount of ethyl alcohol is added followed by 1-2 drops of conc. H2SO4 acid. The test tube is then heated in a water bath for at least few minutes (at the least 5 minutes). The contents of the test tube are then poured into a beaker containing water, and the smell is noted.
Pleasant or fruity or sweet smell is evolved.
Presence of carboxylic group in the sample Is confirmed.




















REPORT: Given sample contains aliphatic/aromatic carboxylic acid functional group.


___________________________________________________________________


Know more about stuff related to this practical experiment (Important for Boards):-

Reference:-
  • Verma, Dr. N.K.. Comprehensive Practical Chemistry, Class XII.
  • NCERT. Chemistry Part I and II, Class XII.

For latest syllabus, both theory and practical papers for class XII, check out the CBSE’s official site http://cbseacademic.in/ for more info.
___________________________________________________________________



Related Questions-
Identification of organic compounds
Organic Chemistry Practical
Carboxylic Compounds
How to prepare standard solution
How to prepare 250ml of solution
CBSE class 12 chemistry practicals
CBSE class XII chemistry practicals
Qualitative Analysis


Aptitude Amplifier ©2017. All Rights Reserved.

$hide=mobile

Name

Arrays,6,Blogger,2,C++,9,CBSE,19,Chemistry,9,Class 11,9,Class 12,9,CodeBlocks,9,Coding,13,Compulsory English,9,Computer Science,9,Craft,1,CreMat,4,Dev C++,9,EduMat,67,English,9,George Bernard Shaw,1,Graduation,50,Hardware,2,IGNOU,47,Internet,9,KB,3,Loops,7,Network,11,Notes,49,Organic,6,Others,1,Physical,3,Post Graduation,43,Practicals XI,9,Practicals XII,9,Programming,9,Qualitative Analysis,6,Quantitative Analysis,4,R.K. Narayan,3,Rabindranath Tagore,1,SAP,97,Sociology,41,Sociology Honors,43,Software,8,Special,3,Stephen Leacock,3,Strings,2,Structures,1,Turbo C++,9,Tweaks and Tricks,23,University of Calcutta,50,William Shakespeare,1,Windows,5,Windows 7,2,Windows 8,2,Yoga,3,
ltr
item
Aptitude Amplifier: Qualitative Analysis for the identification of the Carboxylic functional group in the Organic Sample
Qualitative Analysis for the identification of the Carboxylic functional group in the Organic Sample
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitNty8Ht62FB8f1qEUODKOOsFEQVNmZJr_G3zh3hKVJyH1G8Zv2es8BBwv_gRbHZCIArWrBD4PDrrJqAc7nKmvF4nFIT2QbXHVy1kW6-P8EnK6FrCX6EiQhHncRuH87qDH1zJKIwbVjE5h/s640/Qualitative+Analysis+for+the+identification+of+the+Carboxylic+functional+group+in+the+Organic+Sample.jpg
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitNty8Ht62FB8f1qEUODKOOsFEQVNmZJr_G3zh3hKVJyH1G8Zv2es8BBwv_gRbHZCIArWrBD4PDrrJqAc7nKmvF4nFIT2QbXHVy1kW6-P8EnK6FrCX6EiQhHncRuH87qDH1zJKIwbVjE5h/s72-c/Qualitative+Analysis+for+the+identification+of+the+Carboxylic+functional+group+in+the+Organic+Sample.jpg
Aptitude Amplifier
https://aptitudeamplifier.blogspot.com/2017/06/qualitative-analysis-for-carboxylic-group.html
https://aptitudeamplifier.blogspot.com/
https://aptitudeamplifier.blogspot.com/
https://aptitudeamplifier.blogspot.com/2017/06/qualitative-analysis-for-carboxylic-group.html
true
1849318885804408050
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy