Exam Details
| Subject | Chemistry | |
| Paper | ||
| Exam / Course | Diploma in Civil Engineering (DCLE) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2015 | |
| City, State | new delhi, |
Question Paper
Write down the electronic configuration of 17Cl and 24Cr++.
Which one of a and 0-is larger and why?
What is triad. Give one example of a triad?
Write the names of any three elements of Group IA.
Complete the following nuclear reaction:
6 3 Li ... 3 1 H 4 2 He
Complete the chemical reaction given below:
NH3 HCl ...
What is the percentage of oxygen In the exhaled air?
What is atomic radii? How does it vary in a group and in a period Explain with examples.
What are the different natural sources of water?
What is the major function of atmospheric water?
Define atmosphere. What is the importance of different zones of atmosphere in our life?
Describe the preparation, properties and uses of oxygen.
Give the structure of hydrazine.
Explain the removal of temporary hardness of water with appropriate chemical equations.
How is chlorine prepared in the laboratory? Name two important compounds of chlorine with their uses.
Why is water a better solvent for ionic compounds than other solvents?
Explain one industrial method used in the preparation of hydrogen.
Give two important uses of hydrogen.
Write short notes on any two of the following:
Reverse Osmosis
Distillation
Lignite
Bituminous Coal
Draw a neat and labelled diagram of Blast furnace and describe the manufacturing of steel from iron.
What are the main causes of scale formation in the boiler List out its disadvantages.
One gm of NaOH is dissolved in 1 L water. Calculate the amount of Na in ppm.
What is meant by refining of petroleum
Explain fractional distillation of petroleum and name any three fractions obtained during the process.
Define copolymers. Give the names of any two copolymers with their uses.
What is vulcanization
What are the main properties of glasses?
What are the important steps involved in the manufacturing of refractories?
Name four important raw materials used in the manufacturing of glass.
Why does copper turn pale green on standing for a long time in air?
Which one of a and 0-is larger and why?
What is triad. Give one example of a triad?
Write the names of any three elements of Group IA.
Complete the following nuclear reaction:
6 3 Li ... 3 1 H 4 2 He
Complete the chemical reaction given below:
NH3 HCl ...
What is the percentage of oxygen In the exhaled air?
What is atomic radii? How does it vary in a group and in a period Explain with examples.
What are the different natural sources of water?
What is the major function of atmospheric water?
Define atmosphere. What is the importance of different zones of atmosphere in our life?
Describe the preparation, properties and uses of oxygen.
Give the structure of hydrazine.
Explain the removal of temporary hardness of water with appropriate chemical equations.
How is chlorine prepared in the laboratory? Name two important compounds of chlorine with their uses.
Why is water a better solvent for ionic compounds than other solvents?
Explain one industrial method used in the preparation of hydrogen.
Give two important uses of hydrogen.
Write short notes on any two of the following:
Reverse Osmosis
Distillation
Lignite
Bituminous Coal
Draw a neat and labelled diagram of Blast furnace and describe the manufacturing of steel from iron.
What are the main causes of scale formation in the boiler List out its disadvantages.
One gm of NaOH is dissolved in 1 L water. Calculate the amount of Na in ppm.
What is meant by refining of petroleum
Explain fractional distillation of petroleum and name any three fractions obtained during the process.
Define copolymers. Give the names of any two copolymers with their uses.
What is vulcanization
What are the main properties of glasses?
What are the important steps involved in the manufacturing of refractories?
Name four important raw materials used in the manufacturing of glass.
Why does copper turn pale green on standing for a long time in air?
Other Question Papers
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)
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- School of Continuing Education (SOCE)
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Subjects
- Advanced Survey
- Applied Mechanics
- Chemistry
- Computer Basics
- Concrete Technology
- Construction Drawing
- Construction Technology- I
- Construction Technology- II
- E/M Engineering
- Electrical Technology
- Electronics
- Elementary Civil Engineering
- Elements of Survey
- Engineering Drawing
- Engineering Materials
- Environmental Engineering
- Estimating & Quantity Surveying- I
- Estimating & Quantity Surveying- II
- Fluid Mechanics
- Heat Power Technology
- Industrial Management
- Machine Drawing
- Mathematics-I
- Mathematics-II
- Physics
- Refrigeration & Air-Conditioning
- Strength of Materials
- Theory of Structures- I
- Theory of Structures- II
- Workshop Technology