CBSE- Coal and Petroleum-HOTS Questions


            



COAL AND PETROLEUM
HIGH ORDER THINKING QUESTIONS
1.   Write the names of two natural substances.
2.   What is the purest form of carbon?
3.   What is the main use of coke?
4.   Name two fractions of petroleum>
5.   Why petroleum is called black gold?
6.   Expand PCRA.
7.   What are natural resources? Explain with examples.
8.   What are fossil fuels? Name main fossil fuel.
9.   What is coal tar? What are its uses?
10.   Why CNG is called clean fuel?
11.   State some harmful effects of using fossil fuels?
12.   What are petrochemicals?