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 | December, 2015 | |
| City, State | new delhi, |
Question Paper
Write the electronic configuration of 20Ca and 29Cu.
What is modern periodic law?
Arrange the following in the increasing order of their size
Na,
Explain, why the second ionisation energy is generally larger than the first ionisation energy.
Write the names of the monomers given below:
CH2 CH2
CH2 CHCl
Which one among O and is larger and why?
Ice has a lower density than water. Explain.
Explain, why atomic radii increase down a group while they decrease in a period from left to right.
What happens to the effective nuclear charges while moving along a period from left to right? Give reasons.
What is meant by hydrological cycle? What is the potential use of surface run-off?
Calculate the oxidation state of nitrogen in the following compounds:
HNO3 and N2H4
What are the important ores of iron?
Describe the Open Hearth Process or Basic Oxygen Process for the preparation of steel from iron.
A water sample contains 100 ppm of calcium ions. Calculate the percentage of CaCO3 in the water sample.
How can the scales be removed from a boiler?
Explain the important internal conditioning methods useful in reduction and prevention of scale formation in a boiler.
Describe the manufacturing of coke by Beehive Oven Process or Otto Hoffmann's By product Oven Process.
What is the difference between primary and secondary fuels?
What are the characteristics of a good fuel?
What is a lubricant?
Write the merits and demerits of semi-solid lubricants.
How is Viscosity Index measured?
Describe any two of the following steps in polymerisation
Chain initiation
Chain propagation
Chain termination
Describe any two methods for moulding of plastics.
What is glass wool?
List five important properties and uses of glass wool.
Write a short note on anyone of the following:
Silica Bricks
Carbon Bricks
Blending of Clay
Define Flash Point, Fire Point and Power Point.
Explain Bomb Calorimetric method for determination of calorific value.
How are refractory materials classified?
What is bleaching powder?
Explain the commercial methods of the manufacturing of bleaching powder and formation of chloroform from bleaching powder.
Write short notes on any two of the following:
Thermosetting Plastics
Peat
Biogas
Electro-dialysis
What is modern periodic law?
Arrange the following in the increasing order of their size
Na,
Explain, why the second ionisation energy is generally larger than the first ionisation energy.
Write the names of the monomers given below:
CH2 CH2
CH2 CHCl
Which one among O and is larger and why?
Ice has a lower density than water. Explain.
Explain, why atomic radii increase down a group while they decrease in a period from left to right.
What happens to the effective nuclear charges while moving along a period from left to right? Give reasons.
What is meant by hydrological cycle? What is the potential use of surface run-off?
Calculate the oxidation state of nitrogen in the following compounds:
HNO3 and N2H4
What are the important ores of iron?
Describe the Open Hearth Process or Basic Oxygen Process for the preparation of steel from iron.
A water sample contains 100 ppm of calcium ions. Calculate the percentage of CaCO3 in the water sample.
How can the scales be removed from a boiler?
Explain the important internal conditioning methods useful in reduction and prevention of scale formation in a boiler.
Describe the manufacturing of coke by Beehive Oven Process or Otto Hoffmann's By product Oven Process.
What is the difference between primary and secondary fuels?
What are the characteristics of a good fuel?
What is a lubricant?
Write the merits and demerits of semi-solid lubricants.
How is Viscosity Index measured?
Describe any two of the following steps in polymerisation
Chain initiation
Chain propagation
Chain termination
Describe any two methods for moulding of plastics.
What is glass wool?
List five important properties and uses of glass wool.
Write a short note on anyone of the following:
Silica Bricks
Carbon Bricks
Blending of Clay
Define Flash Point, Fire Point and Power Point.
Explain Bomb Calorimetric method for determination of calorific value.
How are refractory materials classified?
What is bleaching powder?
Explain the commercial methods of the manufacturing of bleaching powder and formation of chloroform from bleaching powder.
Write short notes on any two of the following:
Thermosetting Plastics
Peat
Biogas
Electro-dialysis
Other Question Papers
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