Coal and Petroleum (Class - VIII)
| Description: Coal and Petroleum | |
| Number of Questions: 15 | |
| Created by: Girish Goud | |
| Tags: Coal and Petroleum VIII Usage of Multistage Methods for Separation Petroleum and the Process of Refining Natural Gas, a Natural Resource Limited Life of Certain Natural Resources Classification of Resources Coal - its Discovery and its Products |
Which of the following gases occurs above the petroleum oil trapped under the rocks?
Which of the following is used as a source of hydrogen gas needed to manufacture fertilisers?
Liquefied petroleum gas consists mainly of
Which of the following are fossil fuels?
a. Coal b. Petroleum c. Natural gas d. Biogas
When heated with oxygen, carbon burns to produce heat and ___________ gas.
Which of the following statements is/are false?
a. Coal is a hard, black combustible mineral that consists mainly of carbon. b. The real source of energy of coal is solar energy. c. The slow process by which the dead plants buried deep under the earth have become coal is called fractional distillation.
Coal gas is mainly a mixture of which of the following gases?
a. Methane b. Hydrogen c. Carbon monoxide d. Butane
Petroleum is a complex mixture of hydrocarbons. Which of the following substances constitute hydrocarbons?
a. Carbon b. Carbon monoxide c. Hydrogen d. Nitrogen
Match the following:
| a. Coal gas | 1. It is a tough and black solid substance that is obtained by heating coal in the absence of air. |
| b. Coal tar | 2. It is a thick, black liquid having an unpleasant smell that is obtained by heating coal in the absence of air. |
| c. Coke | 3. It is a gaseous fuel that is obtained by the strong heating of coal in the absence of air. |
Which of the following statements is/are false?
a. The chemicals obtained from petroleum and natural gas are called petrochemicals. b. CNG is more polluting than petrol and diesel. c. Natural gas is used as a fuel in thermal power stations for generating electricity.
Natural gas does not consist of which of the following gases?
a. Methane b. Ethylene c. Propane d. Ethane
Which of the following is an almost pure form of carbon and is used mainly as a reducing agent in the extraction of some metals?
Exhaustible and inexhaustible resources are the two types of resources. Which of the following resources is/are inexhaustible?
Which of the following is not a fraction obtained by the refining of petroleum?
The various compounds present in _________ are separated by the process of fractional distillation.
a. coal tar b. coke c. coal gas