Exam Details
| Subject | Environmental Chemistry | |
| Paper | ||
| Exam / Course | Bachelor Degree Programme (APPLICATION ORIENTED COURSE) | |
| Department | School of Sciences (SOS) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
00602
No. ofPrinted Pages: 12 IAEC-Oll
BACHELOR'S DEGREE PROGRAMME
Term-End Examination
December, 2015
(APPLICATION ORIENTED COURSE) AEC-01 ENVIRONMENTAL CHEMISTRY
Time: 3 hours Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
1. Fill in the blanks in the following: 10x1=10
The upper part of the soil profile above the parent material within which most plant· roots and soil animals are found is called
The quantity of any growth factor which will produce one-half of the theoretical highest yield is termed as
Alkalinity is known as and it indicates how much ions a system can accept during the neutralisation process.
is the temperature to which the air must ·be cooled to reach saturation.
is a mixture of smoke and fog.
Chlorofluorocarbons are gases.
Single celled eukaryotic microorganisms without a cell wall are called
(viii) A plot of concentration of the sample components against the elution volume is known as a
The electrolytic of a medium is equal to the reciprocal of its electrical resistance.
The number of moles of the solute dissolved in one litre of the solvent is called as
Answer any five of the following: 5x2=10
Define soil taxonomy. What is its basis?
Write the abnormal properties of water which help in the operations of the hydrological cycle.
Briefly describe atmospheric effects.
How are fibres classified? Give one example each for each type.
What are the common preservation techniques used for water samples?
Define the following terms: Wave number and Frequency
Write the factors on which the biological oxygen demand depends.
2. Answer any four of the following: 4x5=20
Write the physiological functions of nitrogen and potassium.
Describe the methods used for optimising the use of water.
Draw a diagrammatic sketch of different types of plumes arising from the stack.
Define hazardous waste and give an example. Briefly describe the management of hazardous waste by waste reduction at source.
Enlist the different types of titrimetric analysis. Describe in brief the titration between potassium dichromate and potassium iodide.
Describe the enrichment culture technique for studying soil microorganisms.
3. Answer any four of the following: 4x5=20
How do inorganic compounds absorb in the UV region Explain taking the examples of lanthanides and actinides.
Give a comparison of features of single beam and double beam filter photometers.
Describe the characteristics of the waste from the petrochemical industry.
What are the distinctive features of surfactants How can these surfactants be removed from a water body?
Describe the natural and anthropogenic pollutants and differentiate between the two.
What is Henry's Law? Discuss the different factors influencing the solubility of a gas in water.
4. Answer any four of the following: 4x5=20
Define the micro and macro nutrients in soil. Explain the factors affecting fertilizer requirement.
How is the water quality monitoring system used for risk assessment?
Explain the different regions of atmosphere.
Discuss the water associated health hazards from biological agents.
What important factors are taken into consideration while collecting a soil sample?
Draw the schematic diagram of the formation of soil by weathering.
5. Answer any four of the following: 4x5=20
Define alkalinity of water. How is it different from basicity Write the reactions involved in the determination of alkalinity.
Describe a glass electrode and its use in the determination of pH.
Name any six pollution parameters with reference to industrial effluents. Describe anyone of these parameters.
What is an ambient air pollutant? Describe the indoor air pollutants giving examples.
What are the primary pollutants in photochemical smog? Write the mechanism of peroxyacetyl nitrate formation.
Describe the role of earthworms and nematodes as important soil components.
No. ofPrinted Pages: 12 IAEC-Oll
BACHELOR'S DEGREE PROGRAMME
Term-End Examination
December, 2015
(APPLICATION ORIENTED COURSE) AEC-01 ENVIRONMENTAL CHEMISTRY
Time: 3 hours Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
1. Fill in the blanks in the following: 10x1=10
The upper part of the soil profile above the parent material within which most plant· roots and soil animals are found is called
The quantity of any growth factor which will produce one-half of the theoretical highest yield is termed as
Alkalinity is known as and it indicates how much ions a system can accept during the neutralisation process.
is the temperature to which the air must ·be cooled to reach saturation.
is a mixture of smoke and fog.
Chlorofluorocarbons are gases.
Single celled eukaryotic microorganisms without a cell wall are called
(viii) A plot of concentration of the sample components against the elution volume is known as a
The electrolytic of a medium is equal to the reciprocal of its electrical resistance.
The number of moles of the solute dissolved in one litre of the solvent is called as
Answer any five of the following: 5x2=10
Define soil taxonomy. What is its basis?
Write the abnormal properties of water which help in the operations of the hydrological cycle.
Briefly describe atmospheric effects.
How are fibres classified? Give one example each for each type.
What are the common preservation techniques used for water samples?
Define the following terms: Wave number and Frequency
Write the factors on which the biological oxygen demand depends.
2. Answer any four of the following: 4x5=20
Write the physiological functions of nitrogen and potassium.
Describe the methods used for optimising the use of water.
Draw a diagrammatic sketch of different types of plumes arising from the stack.
Define hazardous waste and give an example. Briefly describe the management of hazardous waste by waste reduction at source.
Enlist the different types of titrimetric analysis. Describe in brief the titration between potassium dichromate and potassium iodide.
Describe the enrichment culture technique for studying soil microorganisms.
3. Answer any four of the following: 4x5=20
How do inorganic compounds absorb in the UV region Explain taking the examples of lanthanides and actinides.
Give a comparison of features of single beam and double beam filter photometers.
Describe the characteristics of the waste from the petrochemical industry.
What are the distinctive features of surfactants How can these surfactants be removed from a water body?
Describe the natural and anthropogenic pollutants and differentiate between the two.
What is Henry's Law? Discuss the different factors influencing the solubility of a gas in water.
4. Answer any four of the following: 4x5=20
Define the micro and macro nutrients in soil. Explain the factors affecting fertilizer requirement.
How is the water quality monitoring system used for risk assessment?
Explain the different regions of atmosphere.
Discuss the water associated health hazards from biological agents.
What important factors are taken into consideration while collecting a soil sample?
Draw the schematic diagram of the formation of soil by weathering.
5. Answer any four of the following: 4x5=20
Define alkalinity of water. How is it different from basicity Write the reactions involved in the determination of alkalinity.
Describe a glass electrode and its use in the determination of pH.
Name any six pollution parameters with reference to industrial effluents. Describe anyone of these parameters.
What is an ambient air pollutant? Describe the indoor air pollutants giving examples.
What are the primary pollutants in photochemical smog? Write the mechanism of peroxyacetyl nitrate formation.
Describe the role of earthworms and nematodes as important soil components.
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Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Environmental Chemistry
- Foundation Course in Science andTechnology
- Human Environment
- Integrated Pest Management
- Operations Research
- Statistical Techniques
- Teaching of Primary School Mathematics