M.Sc. DEGREE EXAMINATION, APRIL 2016
Oceanography and Coastal Area studies
CHEMICAL OCEANOGRAPHY
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
All questions carry equal marks.
1. List the major ions in sea water.
2. Define redox potential.
3. Eddy conductivity.
4. What is diffusivity?
5. BOD.
6. Origin of H2S in sea water.
7. What is anoxic basin?
8. What are trace elements?
9. Nutritional importance of silica.
10. Role of phosphorous in marine organisms.
Sub. Code
461102
RW-10939
2
Wk 3
Part B 5 25)
Answer all questions, choosing either or
All questions carry equal marks.
11. Write on the relation between chlorinity and
salinity.
Or
List our various techniques used to measure sea
water constituents.
12. Temperature and pressure effect on the density of
seawater.
Or
Explain SONAR and its principle and applications.
13. What is significance of COD in seawater chemistry?
Or
What are noble gases? How it is distributed in
seawater?
14. Source of trace elements in sea.
Or
Write on major and minor elements in seawater.
15. Nitrogen as a nutrient Explain.
Or
Brief the seasonal variation of nutrients in sea.
RW-10939
3
Wk 3
Part C 10 30)
Answer any three questions.
All questions carry equal marks.
16. Physio-chemical properties of sea water Discuss.
17. Discuss the colligative and other suspended solids
properties of sea water.
18. CO2 and CO3 distribution in sea water Explain.
19. Write in detail on trace elements in coastal waters.
20. Write on the fertility of sea.