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Science
Coal and Petroleum
CBSE
Class 8
Science
Question:
Describe characteristics and uses of coke.
Answer:
Characteristics of coke are: (i)Tough (ii)Porous (iii)Black in colour Uses of coke: (i)In manufacture of steel. (ii)In the extraction of metals (as a reducing agent).
Questions and Answers
Coal and Petroleum
Q 1.
Explain the process of formation of petroleum.
Answer
Q 2.
What are the advantages of using CNG and LPG as fuels?
Answer
Q 3.
Describe how coal is formed from dead vegetation. What is this process called?
Answer
Q 4.
Name the petroleum product used for surfacing of roads.
Answer
Q 5.
Describe characteristics and uses of coke.
Answer
Q 6.
Explain why fossil fuels are exhaustible natural resources.
Answer
