Environmental
Chemistry Solved Assignment 2020-21
Course Code : MEV 013
Course Title : Environmental Chemistry
Assignment Code : MEV 013/TMA-01/January & July session 2021
Maximum Marks 100
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.
5x20=100
1. Explain modern
methods of separation and electrical methods of analysis with suitable
examples?
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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