INORGANIC CHEMISTRY LAB I

Paper Code: 
CHY 126
Credits: 
3
Contact Hours: 
90.00
Max. Marks: 
100.00
Objective: 

Course Objective(s): 

This course will enable the students to –

get acquainted with various safety measures including handling of chemicals, safe disposal of chemical wastes etc., understand the concept of separation of mixtures containing metal ions, insoluble and interfering radicals and learn about the quantitative estimation of different ions volumetrically.

 

Course Outcomes (COs): 

Course Outcomes

Teaching Learning strategies

Assessment Strategies

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

CO31: apply the knowledge of lab safety measures during the experimental work.

CO32: analyze and detect ions, rare elements and other pollutants in the samples of daily use (vegetables, food, water etc.)

CO33: estimate the concentrations of different ions volumetrically.
  • Laboratory instructions and Demonstrations
  • Conduction of Experiments
  • Lab Records
  • Viva voce
  • Quiz

 

 

 

 

 
Unit I: 

Laboratory Safety Measures 
Safe working procedure and protective environment, protective apparel, emergency procedure and first aid, safe storage and use of hazardous chemicals. Procedure for working with gases above or below atmospheric pressure, safe storage and disposal of waste chemicals, recovery, recycling and reuse of laboratory chemicals, neutralization of strong acids and strong bases, procedure for laboratory disposal of explosives.

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.

 

Qualitative Mixture Analysis  

Analysis of mixture for eight radicals (cations and anions) including 

 I.     Less common metal ions - Mo, W, Ti, Zr, Th, V, U (two metal ions in cationic/anionic forms).

II.       Insolubles –oxides, sulphates and halides.

III.      Interfering - oxalate, phosphate, borate, fluoride.

 

Quantitative Analysis: Volumetric Analysis (any three)

 I.       Determination of chloride ion in water by Mohr’s method or by use of adsorption indicator.

II.       Determination of nickel using Eriochrome Black T as an indicator (Back titration).

III.     Determination of percentage purity of boric acid.

IV.      Determination of nitrite in a given sample.

Essential Readings: 
  • Vogel's Qualitative Inorganic Analysis, Seventh Edition; G. Svelha, B. Sivasankar; Pearson Education India, New Delhi, 2012
  • Vogel’s Textbook of Quantitative Chemical Analysis, Sixth Edition; M. Thomas, B. Sivasankar, J. Mendham, R.C. Denney, J. D. Barnes; Pearson Education, New Delhi, 2009.
References: 

SUGGESTED READINGS: 

  • Advanced Practical Chemistry, First Edition; S. C. Das; Calcutta Publishing, Calcutta, 2000.

 

e-RESOURCES: 

Scheme of Examination

 

 The duration of examination will be 6 hrs. 

The following exercises will be set in the examination

Qualitative Mixture Analysis                                          40 marks

Volumetric Analysis                                                      15 marks

Viva                                                                           08 marks

Record                                                                       07 marks 

Total                                                                              70 marks        

1.Qualitative Mixture Analysis 

The exercise carries 40 marks. Not more than one interfering radical, rare metal as anion and an insoluble will be given in a mixture of eight radicals. 

Two marks shall be awarded for each radical correctly reported and properly recorded. One mark will be awarded for each correct radical if only dry test or preliminary tests are given. One mark may be awarded to a candidate if she has approached in systematic and correct manner towards the analysis upto a group in analysis of basic radical or correct indicative test of acid radical. Remaining one mark is reserved for confirmatory test of radical. 

 

2.Volumetric Exercise

The exercise carries 15 marks. The distribution of marks will be as follows:  

Five marks will be reserved for the preparation of solutions, neat methodical and systematic working of the candidates. 

The remaining 8 marks will be distributed as follows: 

 

% Error     Marks awarded 

<1.0           10

1.1              9

1.2              8

1.3              7

1.4              6

1.5              5

1.6              4

1.7              3

1.8              2

1.9              1

2.0              0

3.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.

 

4.Record

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

Academic Year: 
2023-2024
  • Printer-friendly version
  • PDF version