(a) Fossil fuels can be made in the laboratory. (T/F) Soln: a) False b) False c) True d) True e) False … (a)False (b)False (c)True (d)True (e)False. (T/F) (e) Kerosene is not a fossil fuel. (b) CNG is more polluting fuel than petrol. (c) Coke is almost pure form of carbon. Fossil fuels are formed over a period of millions of years, resulting due to the action of high temperature and … SOLUTION: (A) False (B) False (C) True (D) True (E) False. False (b) CNG is more polluting fuel as compared to petrol. (e) Kerosene is not a fossil fuel. (b) CNG is more polluting fuel than petrol. Coke is almost pure form of carbon. (a) Fossil fuels can be made in the laboratory. (a) Fossil fuels can be made in the laboratory. Sol. (A) Fossil fuels can be made in the laboratory. (T/F) (d) Coal tar is a mixture of various substances. (T/F) (d) Coal tar is a mixture of various substances. (d) Coal tar is a mixture of various substances. Dear Student The given statement is True Thanks It is almost a pure form of carbon. Coke is almost pure form of carbon. Identify the substance which is tough, porous and black. False vi. (True) (e) Kerosene is not a fossil fuel. 5. (True) (d) Coal tar is a mixture of various substances. Crude oil. (T/F) Answer. (False) (c) Coke is almost pure form of carbon. (B) CNG is more polluting fuel than petrol. Tick True/False against the following statements: (a) Fossil fuels can be made in the laboratory. (e) Kerosene is not a fossil fuel. (D) Coal tar is a mixture of various substances. A. Presence of carbon in the steel makes it harder and more durable than pure iron. True/False. Question 6 It is almost a pure form of carbon. Q 6. (a) False (b) False (c) True (d) True (E) False. B. Coke. (d) Coaltar is a mixture of various substances. (False) Q.6 Explain why fossil fuels are exhaustible natural resources. Question 11: … True iv. Tick True/False against the following statements. (T/F) (b) CNG is more polluting fuel than petrol. Coal tar is a mixture of various substances. Solution: Coke is a tough, porous and black substance. False (c) Coke is an almost pure form of carbon. True/False i. Fossil fuels can be made in the laboratory. Tick true/false against the following statements. (T/F) (b) CNG is more polluting fuel than petrol. Tick True/False against the following statements: (a) Fossil fuels can be made in the laboratory. True v. Kerosene is not a fossil fuel. (T/F) (e) Kerosene is not a fossil fuel. (c) Coke is almost pure form of carbon. True (e) Kerosene is not a fossil fuel. (T/F) (c) Coke is almost pure form of carbon. 5. (T/F) (c) Coke is almost pure form of carbon. Coal gas was used for street lighting for the first time in London in 1810 and in … (a) False (b) False (c) True (d) True … (E) Kerosene is not a fossil fuel. False . Coke is almost pure form of carbon. Answer 5. C. Coal tar. (C) Coke is almost pure form of carbon. 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