NCERT Solutions For Class 8 Science Chapter 3 Coal And Petroleum Very Short Answer Questions
Question 1. Which product of coal is used in the extraction of metals?
Answer: Coke
Question 2. Write two important uses of Coke.
Answer: Coke is used for the extraction of many metals and also for the manufacturing of steel.
NCERT Solutions for Coal and Petroleum VSAQs Class 8
Question 3. Name the petroleum product used as fuel for stoves, lamps, and jet aircraft.
Answer: Kerosene is used as fuel for stoves, lamps, and jet aircraft.
NCERT Class 8 Science Chapter 3 Coal and Petroleum VSAQs
Question 4. Name the process of separating the various useful constituents of petroleum.
Answer: Petroleum refining
Question 5. How is CNG a better fuel than petrol and diesel in vehicles?
Answer: CNG is a good alternative to petrol and diesel in vehicles because it is a clean fuel and causes less air pollution.
NCERT Solutions for Class 8 Science Coal and Petroleum VSAQs
Question 6. Which gas is used as a starting material for the manufacture of several chemicals, fertilisers, and why?
Answer: Natural gas is used as a starting material for the manufacture of many chemicals (petrochemicals) and fertilisers, as it is a source of hydrogen gas needed to manufacture the fertilisers.
NCERT Solutions for Coal and Petroleum Chapter 3 VSAQs
Question 7. Name the petroleum product used for surfacing roads.
Answer: Bitumen.