Coming soon
CHEMISTRY LAB II
Course Objective(s):
This course will enable the students to -
- perform simple qualitative tests to identify unknown organic compounds
- provide knowledge of viscosity method and surface tension method to determine composition of mixtures.
Course Outcomes (COs):
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Course Outcomes
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Teaching Learning Strategies |
Assessment Strategies |
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On completion of this course, the students will be able to- CO32: identify simple organic compounds by performing step-wise qualitative tests. CO33: determine percentage composition of a given mixture by applying viscosity method and surface tension method. CO34: determine viscosity of the given liquid. |
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A) Organic Chemistry:
Qualitative Analysis 44 hrs
Identification of an organic compound (solid and liquid) through the element detection, functional group analysis, determination of melting point/ boiling point and preparation of suitable derivatives.
B) Physical Chemistry 16 hrs
1. To determine the percentage composition of a given liquid mixture (non-interacting systems) by surface tension method
2. To determine the percentage composition of a given liquid mixture (non-interacting systems) by viscosity method.
3. To determine the viscosity of given oil (Mustard oil) by Redwood viscometer
4. To determine the relative viscosity of given liquid by Ostwald viscometer.
- Advanced Practical Physical Chemistry, Eighteenth Edition; J.B. Yadav; Goel Publishing House, Meerut, 2015.
- Organic Analytical Chemistry: Theory and Practice, Jag Mohan ; Narosa Publishing House, New Delhi, 2014.
SUGGESTED READINGS:
- University Practical Chemistry, Second Edition; P.C. Kamboj, Vishal Publishing House, New Delhi; 2019.
- Practical Engineering Chemistry, Joshi, Sharma, Jain, Kriplani; Ramesh Book Depot, New Delhi 2008.
e-RESOURCES:
- https://vlab.amrita.edu/index.php?sub=2&brch=191
- https://vlab.amrita.edu/?sub=2&brch=191&sim=345&cnt=1
Marking Scheme
The duration of examination will be 4 hrs.
The following exercises will be set in the examination
- Organic Chemistry: Compound detection 38 marks
- Physical Chemistry 17 marks
- Viva 15 marks
- Total 70 marks
Detection of organic compound
This exercise carries 38 marks. Two compounds (one solid and one liquid) will be provided to detect. Detection of each compound carries 19 marks. The distribution of 19marks will be as follows.
- Physical properties: colour, state, odour 2 marks
- Ignition test (Aliphatic/Aromatic) 1 mark
- Solubility 1 mark
- Action on litmus paper 1 mark
- Element detection 2 marks
- Detection of functional group: Preliminary test 2 marks
- Confirmatory test of functional groups 2 marks
- M.P./B.P. 1 mark
- Confirmatory test of compound 2 marks
- Derivative – procedure & m.p. 2 marks
- Result 3 marks
Physical Chemistry Experiment:
The exercise carries 17 marks. Five marks shall be awarded for preparatory work, setting up of an apparatus, neat and methodical work.
Twelve marks will be awarded for correct observation, use of correct formula, calculation and result within permissible limits
- Theory and procedure 4 marks
- Correct observation and proper recording 2 marks
- Use of correct formula and calculation 3 marks
- Result 3 marks
The permissible limit will be decided by the examiner as it varies with the nature of the experiment.
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 understood the basic principles of chemistry.
