Diploma PGDIMA Model Question Paper Alagappa University www.alagappauniversity.ac.in : Distance Education

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Document Described : Alagappa University
DISTANCE EDUCATION
P.G.D.I.M.A. EXAMINATION, MAY 2011.
FUNDAMENTALS OF ANALYSIS
(2009 onwards)
Time : Three hours Maximum : 100 marks

http://www.alagappauniversity.ac.in/...9&college_id=2
http://www.alagappauniversity.ac.in/...per/PGDIMA.doc

Answer any FIVE questions.
Each question carries 20 marks.
(5 ? 20 = 100)

1.(a)Write notes on :
(i)Properties of Gaussian distribution curves
(ii)Null hypothesis (6 +4)
(b)Discuss the term precision. (5)
(c)Describe the rules for rounding off numerical expressions involving addition, substraction, multiplication and division. (5)

2.(a)Write an essay on waste and fume disposal in laboratories.
(b)What precautions should be observed before the distillation of ether?
(c)Write briefly on cleaning and maintenance of glassware. (10 + 5 + 5)

3.(a)Write short notes on :
(i)Hydrolysis constant
(ii)Degree of hydrolysis. (5 + 5)
(b)What is a buffer solution? What are the different types of buffers? (5)
(c)Discuss the neutralization of a strong acid with a weak base. (5)

4.(a)Write notes on
(i)Masking
(ii)Demasking as applied to selective precipitation. (4 + 4)
(b)Explain briefly on adsorption indicators. (7)
(c)Explain how Eriochrome black T functions as an indicators in EDTA titrations. (5)

5.(a)Write short notes on :
(i)Batch extraction
(ii)Continuous extraction. (5 + 5)
(b)Mention at least six characteristics required of an ideal solvent for extraction. (5)
(c)Explain the principle of distillation. (5)

6.(a)What are determinate errors? How are they minimised?
(b)What are F-test and Q-test? Explain the importance of these tests.
(c)Discuss the sampling methods for solid.
(d)Write a detailed note on ionization constants of acids and bases. (5 + 5 + 5 + 5)

7.(a)Discuss the general precautions which help avoid accidents in laboratories.
(b)What is common ion effect? Discuss its importance.
(c)Write about the stepwise and overall formation constants. (10 + 5 + 5)

8.(a)Describe in detail the theory and feasibility of redox titration.
(b)Discuss the theory and applications of floatation. (10 + 10)