Coal and Petroleum
14 solved questions from Class 8 Science, each with the full working. Tap any question to see the step-by-step solution.
- 1 What is the fundamental scientific concept introduced in the chapter 'Coal and Petroleum'? medium MCQ Key Concept & Definition
- 2 Which of the following is an important application or observation related to 'Coal and Petroleum'? easy MCQ Practical Application
- 3 What primary question does the chapter 'Coal and Petroleum' aim to answer? medium MCQ Core Scientific Inquiry
- 4 Why is the study of 'Coal and Petroleum' essential for students in class-8? hard MCQ Importance & Significance
- 5 Which key practice is recommended while studying topics in 'Coal and Petroleum'? medium MCQ Scientific Method
- 6 What is the primary topic or theoretical principle explored in 'Coal and Petroleum' (Class 8 SCIENCE)? medium MCQ Chapter Core Principle
- 7 Which key mechanism or analytical rule is highlighted in 'Coal and Petroleum'? medium MCQ Key Analytical Mechanism
- 8 If burning 1 kg of bituminous coal releases 25 MJ of energy, how many MJ of energy are released when 150 g of coal is burned? medium 2 marks Energy calculation for coal
- 9 Which of the following types of coal has the highest carbon content? easy MCQ 1 mark Carbon content in coal types
- 10 If burning 1 kg of anthracite coal releases 30 MJ of energy, how many MJ of energy are released when 200 g of anthracite is burnt? medium 2 marks Energy released by coal combustion
- 11 What is the process called that transforms plant matter into coal during geological time? medium 2 marks Coal formation process
- 12 If burning 1 kg of lignite coal releases 18 MJ of energy, how much energy will be released when 250 g of lignite is burnt? medium 2 marks Energy content of coal
- 13 Which type of coal is most abundant in Indian coal deposits? easy MCQ 1 mark Types of coal
- 14 Which catalyst is commonly used in the catalytic cracking of heavy hydrocarbons during petroleum refining? hard MCQ 3 marks Catalytic cracking