ORGANIC CHEMISTRY LAB I

Paper Code: 
CHY 127
Credits: 
3
Contact Hours: 
90.00
Max. Marks: 
100.00
Objective: 

Course Objectives :

The course aims at providing ample training in handling basic chemical laboratory instruments, develop quantitative and qualitative skills to use the basic techniques involved in synthetic organic chemistry.

Course Outcomes (COs):

Course Outcomes

Teaching Learning Strategies

Assessment Strategies

  
 

On completion of this course, students will be able to-

CO40-work safely in a chemistry lab and know what to do in case of an accident

CO36-apply suitable techniques to separate an organic mixture.

CO41- perform both independently and be able to document the results obtained through the writing of lab reports.

CO42-develop competence in intellectual, practical and transferable skills necessary for employment as a professional chemist.
  • Tutorials
  • Demonstrations using models
  • Assertion and reasoning
  • Technology enabled learning
  • Peer learning

 
  • Oral and written examinations
  • Quiz
  • Group activity
  • Multiple choice questions
  • Short answer type questions
  • Assertion and reasoning
  
 

 

Unit I: 

Laboratory Safety Measures

MSDS, identification, verification and segregation of laboratory waste, disposal of waste in sanitary sewer system, incineration and transportation of hazardous chemicals. Flammable solvents, fire hazards in chemical laboratory.

Basic Techniques Involved in Synthetic Organic Chemistry

  • Different types of glasswares.
  • Filtration.
  • Distillation (distillation at atmospheric pressure, steam distillation, fractional distillation and distillation at reduced pressure).
  • Recrystallization and melting point correction.
  • Use of decolorizing carbon.
  • Thin layer chromatography.

 

Qualitative Analysis

Separation, purification and identification of components of a mixture of two organic compounds (one liquid and one solid or two solids) using TLC for checking the purity of separated compounds.

 

Quantitative Analysis

 

  • Determination of the percentage and number of hydroxyl groups in an organic compound by acetylation method.
  • Estimation of amines/phenols using bromate bromide solution.
  • Determination of iodine number and saponification value of an oil sample.
  • Demonstration Exercise
  • Estimation of sulphur by messenger or fusion method.
  • Estimation of nitrogen by Kjeldahl’s method.

 

Essential Readings: 
  • Vogel’s Textbook of Practical Organic Chemistry; Fifth Edition; B.S. Furniss, A.J. Hannaford,
  • P.W.G. Smith, A.R. Tatchell; Adission – Wesley Longman Ltd. England, 2015.
  • Practical Organic Chemistry; Fourth Edition; F.C. Mann, B.C. Saunders; Pearson Education Ltd., New Delhi, 2013.

 

References: 

SUGGESTED READINGS:

  • Advanced Practical Organic Chemistry; J. Leonard, B. Lygo and G. Procter; Third Edition; CRC Press,2013.

e-RESOURCES:

 

MARKING INSTRUCTIONS

1.     The duration of examination will be 6 hrs.

2.     The following exercise will be set in the examination

a)     Organic Mixture Analysis                                          30 marks

b)     Quantitative analysis                                               25 marks

c)     Viva                                                                       08 marks

d)     Record                                                                   07 marks

                                                Total                            70 marks

3.     Organic Mixture analysis

This exercise carries 30 marks for the identification of two organic compounds. Six marks are reserved for the proper selection of separation technique, four marks for proper reporting of result and rest of the 20 marks are kept for the identification of two organic compounds (10 marks each)

1)     Physical properties: colour, state, odour                               ½ marks

2)     Solubility                                                                           ½ marks

3)     Aliphatic/Aromatic                                                               ½ marks

4)     Element(s) detection                                                            2 marks

5)     Functional group(s), M.P./B.P.                                                3 marks

6)     Confirmatory test                                                                 1 mark

7)     Derivative- procedure & M.P.                                                 2½ marks

 

Out of two organic compounds, one compound will be so given that its derivative can be obtained under the prevailing conditions of the laboratory.

 

4.     Quantitative analysis:

The exercise carries 25 marks. Distribution is as follows:

 

Theory and procedure                           5 marks

Preparation of solutions                         4 marks

Observation                                          4 marks

Calculation                                            6 marks

Result                                                   6 marks

   

5.     Viva:

Oral questions shall generally be asked over the work assigned to the candidate. The purpose is to find out as to what extent the candidate has understanding the basic principles of chemistry.

 

6.     Record:

Marks will be allotted to the students on the basis of regularity of the checking of the records.

Academic Year: 
2022-2023
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