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Sce 201: Introduction To Environmental Chemistry Regular Programme Question Paper

Sce 201: Introduction To Environmental Chemistry Regular Programme

Course:Bachelor Of Science In Industrial Chemistry

Institution: University Of Nairobi question papers

Exam Year:2017

SCE 201: INTRODUCTION TO ENVIRONMENTAL CHEMISTRY REGULAR PROGRAMME

CAT1 2017/2018

SUBMIT BY 12TH FEBRUARY 2018

INSTRUCTIONS

Answer ALL Questions (100 Marks)

QUESTION ONE (25 MARKS)
1) With the help of appropriate equations discuss the main types of chemical weathering. 2) Discuss the factors that influence physical weathering. 3) Illustrate the main redox reactions in aquatic chemistry.
QUESTION TWO (25 MARKS)
a) Using SO2, CO2 and NO2, discuss the chemistry of rain water acidification. b) What is the expected rain pH under each circumstance? Show the equilibrium chemistry and calculations involved. c) Describe the challenges associated with acid rain. d) Describe natural sources of atmospheric acidification.
QUESTION THREE (25 MARKS)
a) What is environmental radioactive pollution? b) Discuss natural and anthropogenic sources of radioactivity. c) Describe radionuclides application in medicine and industry.
QUESTION FOUR (25 MARKS) a) Describe the chemistry of the biosphere with respect to nitrogen, oxygen and carbon cycles. Show appropriate diagrams and reactions. b) Explain the meaning of eutrophication. c) How can you determine the limiting factors in eutrophication?

Sce 201: Introduction To Environmental Chemistry Regular Programme Question Paper

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