Consider the following statements about coal seam gas and petroleum gas - VCE - SSCE Chemistry - Question 9 - 2023 - Paper 1
Question 9
Consider the following statements about coal seam gas and petroleum gas.
I. Coal seam gas and petroleum gas are both mixtures.
II. Coal seam gas and petroleum ga... show full transcript
Worked Solution & Example Answer:Consider the following statements about coal seam gas and petroleum gas - VCE - SSCE Chemistry - Question 9 - 2023 - Paper 1
Step 1
I. Coal seam gas and petroleum gas are both mixtures.
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Answer
This statement is correct. Both coal seam gas and petroleum gas are indeed mixtures containing various hydrocarbons and other compounds.
Step 2
II. Coal seam gas and petroleum gas both combust to produce carbon dioxide.
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This statement is also correct. When coal seam gas and petroleum gas combust, they react with oxygen to produce carbon dioxide and water.
Step 3
III. Coal seam gas and petroleum gas are both fossil fuels.
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This statement is correct as well. Both types of gas are classified as fossil fuels, formed from the remains of ancient plants and animals over millions of years.
Step 4
Which of the above statements are correct?
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Answer
Since all three statements I, II, and III are correct, the answer is D: I, II and III.
