Question 1 : When heated in air, coal burns and produces mainly ________ gas.

Question 5 : Name the petroleum product used as fuel for stoves, lamps and jet crafts.

Question 6 : State True or False. Coal tar is a black, thick liquid with an unpleasant smell.

Question 9 : Name the petroleum product used as fuel for stoves, lamps and jet crafts.

Question 13 : State True or False.Under high temperature and pressure, dead plants get slowly converted to coal.

Question 14 : State True or False .The process of separating the various constituents of petroleum is known as refining.

Question 17 : Process of separation of different constituents from petroleum is called ___________

Question 18 : What are the advantages of using CNG and LPG as fuels?

Question 19 : Coal is formed from dead vegetation. What is this process called?

Question 22 : State True or False .The process of separating the various constituents of petroleum is known as refining.

Question 23 : Which of the following is a pair of exhaustible natural resources?

Question 24 : State True or False.During the processing of coal to get coke, coal tar and coal gas are also obtained

Question 25 : State true or false. LPGs and CNGs give a lot of heat energy when burnt.

Question 26 : State True or False.Under high temperature and pressure, dead plants get slowly converted to coal.

Question 29 : State True or False.The slow process of conversion of dead vegetation into coal is called carbonisation .

Question 30 : Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?

Question 31 : State True or False.The slow process of conversion of dead vegetation into coal is called carbonisation .

Question 32 : State True or False .Excessive burning of fossil fuels is a major cause of air pollution .

Question 33 : State True or False. Coal is one of the fuels used to cook food.

Question 35 : State True or False. Coal is one of the fuels used to cook food.

Question 38 : State True or False .Excessive burning of fossil fuels is a major cause of air pollution .

Question 39 : Air is a natural resource and cannot be exhausted by human activities. It is known as inexhaustible natural resource. Which of the following is another inexhaustible natural resource?

Question 41 : State True or False. Forests and coal are exhaustible natural resources.

Question 42 : State True or False. Natural gas cannot be used for power generation.

Question 43 : State True or False. Petroleum, coal and natural gas are fossil fuels.

Question 44 : State True or False. It is difficult to transport natural gas through pipes.

Question 46 : Naphthalene balls are obtained from coal tar and are used as

Question 48 : State True or False. Petroleum, coal and natural gas are fossil fuels.

Question 49 : State True or False. Coal tar is a black, thick liquid with an unpleasant smell.

Question 50 : Process of separation of different constituents from petroleum is called ___________