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NCERT Solutions class 8 Science 5. Coal And Petroleum Chapter Review

Get complete NCERT Solutions for 8 Science 5. Coal And Petroleum with detailed explanations. Easy-to-understand answers to help students study effectively and score better.

NCERT Solutions class 8 Science 5. Coal And Petroleum Chapter Review

NCERT Solutions class 8 Science 5. Coal And Petroleum Chapter Review

Get complete NCERT Solutions for 8 Science 5. Coal And Petroleum with detailed explanations. Easy-to-understand answers to help students study effectively and score better.

8 Science Chapter 5. Coal And Petroleum - Chapter Review

Preparing for exams becomes easier with Chapter Review. Whether you are studying for board exams or mid-term exams, 8 Science Chapter 5. Coal And Petroleum solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.

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    5. Coal And Petroleum

    Chapter Review

    Chapter Review:
    • Petroleum is a dark oily liquid. It has an unpleasant odour. It is a mixture of various constituents such as petroleum gas, petrol, diesel, lubricating oil, paraffin wax, etc.
    • These resources are present in unlimited quantity in nature is called Inexhaustible. Examples are: sunlight, air.
    • The amount of these resources in nature is limited are called exhaustible. Examples of these resources are forests, wildlife, minerals, coal, petroleum, natural gas etc.
    • The dead remains of living organisms (fossils). So, these are all known as fossil fuels.
    • As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation.
    • Coke is a tough, porous and black substance. It is almost pure form of
      carbon.It is used in the manufacture of steel.
    • Coal tar is a black, thick liquid  with unpleasant smell. It is a mixture of about 200 substances.
    • Petrol and diesel are obtained from a natural resource called petroleum.
    • The world’s first oil well was drilled in Pennsylvania, USA, in 1859.
    • Great commercial importance, petroleum is also called ‘black gold’.
    • The process of separating the various constituents fractions of petroleum is known as refining. It is carried out in a petroleum
      refinery.
    • Natural gas is a very important fossil fuel because it is easy to transport through pipes.
    • CNG is used as a fuel for transport vehicles because it is less polluting.
    Other Pages of this Chapter:

    Page 1 Chapter Review

    Page 2 Text Book Exercise

    Page 3 Text Book Exercise

    Page 4 Additional Questions With Solutions

    Page 5 Additional Questions With Solutions

    📘 Why Chapter Review are Important?

    Chapter Review are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 8 Science Chapter 5. Coal And Petroleum solutions help you understand the core concepts and practice effectively.

    ✍️ Quick Revising Points as Notes in Page-1

    Revision is the key to exam success. Our notes for 8 Science highlight important formulas, key definitions, and exam-ready points from Chapter 5. Coal And Petroleum. These quick revision notes make last-minute preparation easy.

    📚 NCERT Exercise Solutions

    Every NCERT chapter ends with exercises, and solving them is crucial. Our Chapter Review include complete solutions for 8 Science Chapter 5. Coal And Petroleum exercises. With step-by-step answers, you gain clarity and confidence to attempt similar exam questions.

    📝 Additional Important Questions & Answers

    To boost your preparation, we also provide additional important questions with answers. These are prepared from previous year board papers, sample papers, and important concepts of Chapter 5. Coal And Petroleum. Practicing these ensures you are well-prepared for both board and mid-term exams.

    🎯 Useful for Board & Mid-Term Exams

    Our Chapter Review are useful for both board exams and mid-term exams. For 8 Science, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.

    🌟 Final Words

    In short, Chapter Review for 8 Science Chapter 5. Coal And Petroleum are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.

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