Question

A. Very short answer questions
1. Which form of coal contains the minimum percentage of carbon?
2.Name two non - renewable sources of energy.
3 Which petroleum product is used as grease in automobiles and heavy machines?
4.Name two coal mines located in Jharkhand.
5.Where are natural gas fields found in India?
6.Name three major petroleum
producing countries of the world.
7.Where is coal obtained from?

B. Short - answer questions
1. Distinguish between renewable and non-renewable sources of energy with examples.
2.Why are coal and petroleum called fossil fuels?
3. What does residual crude contain?
4. Name the two government agencies for the exploration and production of petroleum in India.
5. Define petrochemicals.
6. What is petroleum a mixture of?
7. How is a natural gas transported and stored?
8. List four uses of CNG

F. Long-answer questions
1. Define the destructive distillation of coal. Why is it carried out? What are the products obtained?
2. How is petroleum formed? How is it obtained?
3. Why is refining of petroleum carried out? Name the important products obtained from it
4. Define fractional distillation of petroleum.
5. Describe the appearance of ----
. Coal .Petroleum
. Coal tar . Coke
6. Describe the formation of coal. List five uses of coal.
7. What do you mean by conservation of fossil fuels? Why is it necessary?
8. How can petrol and diesel be conserve?

Answer 1

Answer:

1)lignite is the lesser in coal.

2)fossil fuel and petroleum.

3)lubricant oil. 4)a. rajmahal coalfield b. ramgarh field. 5)any chemical substance obtained from petrol and natural gas. 6)Russia, Saudi Arabia.

7)coal is obtained from extracted in earth and surface mining or underground mining.

Answer 2

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