MEV 013 Solved Assignment 2021-22
MEV 013
Environmental Chemistry TUTOR MARKED ASSIGNMENT
Course Code : MEV-13
Course Title : Environmental
Chemistry
Assignment Code :
MEV-013/TMA-01/
January & July
session 2021
Coverage : All Blocks
MEV 013 Solved Assignment 2021-22 Note: This assignment is based on the
entire course.
Answer any five questions. All
question carries equal marks.
Please write all answers in your own
words.
2. Differentiate between the following
a. Accuracy and Precision
b. Determinate and Indeterminate Errors
3. What are the applications of chromatography technique in
environmental monitoring?
4. Explain the following with suitable examples
a. Chemical equilibrium & Dynamic equilibrium
b. Aromatic hydrocarbons as environmental pollutants
c. Biochemical effects of Arsenic & Mercury
d. Mechanism of adsorption
5. Give a note on scintillation process and working
mechanism of scintillation counter?
6. Explain the reasons for the following?
a. HF stored in copper bottles and not glass bottles
b. Sodium hypochlorite used as a disinfectant
c. Graphite acts as a lubricant
d. Lead components are added to gasoline and why was it
removed with the advent of catalytic convertors
e. TEL was banned as a gasoline additive
7. Explain basic instrumentation for IR Spectrometry and its
environmental applications?
8. a) What is global warming? How is it different from
greenhouse effect? What are the environmental outcomes of global warming?
b) Describe the mechanism of ozone formation in the lower
troposphere?
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