CBSE Class-8 Science: Questions 148 - 153 of 469
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 469 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.
Rs. 300.00 or
Question number: 148
Question number: 149
Question number: 150
Question number: 151
The constituents of petroleum separated in the fractional distillation tower are:
Natural gas, petroleum gas
Lubricating oil, paraffin wax, bitumen
Diesel oil, fuel oil
|d.||All a. , b. and c. are correct|
Question number: 152
Question number: 153
Which types of substances form flame?
Combustible substance which produces energy when burnt
Combustible gas burns rapidly and produces heat and light
Combustible substances which vaporise during burning form a flame
Combustible substances which have very low ignition temperature and can easily catch fire.