Hydrogen-oxygen fuel cells can be used to power vehicles. What is produced by the fuel cells? 1 carbon dioxide 2 electricity 3 water
A.
1, 2 and 3
B.
1 and 2 only
C.
1 and 3 only
D.
2 and 3 only
Exam No：0620_s24_qp_12 Year：2024 Question No：14
Answer:
D
Knowledge points:
4.2.1. State that a hydrogen–oxygen fuel cell uses hydrogen and oxygen to produce electricity with water as the only chemical product
4.2.2 Describe the advantages and disadvantages of using hydrogen–oxygen fuel cells in comparison with gasoline / petrol engines in vehicles
Solution:
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