False (c) Coke is an almost pure form of carbon. Tick True/False against the following statements: (a) Fossil fuels can be made in the laboratory. (T/F) (b) CNG is more polluting fuel than petrol. Coke is almost pure form of carbon. Coke is almost pure form of carbon. (T/F) (b) CNG is more polluting fuel than petrol. False vi. Tick true/false against the following statements. (T/F) (c) Coke is almost pure form of carbon. False iii. (False) (c) Coke is almost pure form of carbon. D. Coal gas. Tick True/False against the following statements. True/False i. Fossil fuels can be made in the laboratory. 5. (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 … Question 6 C. Coal tar. Coke is the fuel obtained from coal that is almost pure form of carbon. Sol. (T/F) (c) Coke is almost pure form of carbon. Coal tar is a mixture of various substances. (d) Coaltar is a mixture of various substances. Crude oil. (c) Coke is almost pure form of carbon. Question 11: … (C) Coke is almost pure form of carbon. (T/F) (c) Coke is almost pure form of carbon. (a) False (b) False (c) True (d) True … (a) False (b) False (c) True (d) True (E) False. True iv. False (b) CNG is more polluting fuel as compared to petrol. Coke is almost pure form of carbon. (A) Fossil fuels can be made in the laboratory. False ii. (a)False (b)False (c)True (d)True (e)False. (True) (d) Coal tar is a mixture of various substances. Ans. Tick True/False against the following statements: (a) Fossil fuels can be made in the laboratory. (True) (e) Kerosene is not a fossil fuel. (e) Kerosene is not a fossil fuel. (a) Fossil fuels can be made in the laboratory. Coal gas was used for street lighting for the first time in London in 1810 and in … Q 6. (b) CNG is more polluting fuel than petrol. SOLUTION: (A) False (B) False (C) True (D) True (E) False. (d) Coal tar is a mixture of various substances. True/False. 5. (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. (E) Kerosene is not a fossil fuel. It is almost a pure form of carbon. Tick True/False against the following statements: (a) Fossil fuels can be made in the laboratory. Question 10: Mark the following as True/False. Dear Student The given statement is True Thanks (T/F) (d) Coal tar is a mixture of various substances. True (d) Coaltar is a mixture of various substances. B. Coke. (T/F) Soln: a) False b) False c) True d) True e) False … Solution: Coke is a tough, porous and black substance. False . CNG is more polluting fuel than petrol. A. True (e) Kerosene is not a fossil fuel. (T/F) (e) Kerosene is not a fossil fuel. It is almost a pure form of carbon. (a) Fossil fuels can be made in the laboratory. (a) Fossil fuels can be made in the laboratory. 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