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Fuel Cells (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Fuel Cells' from the broader topic Energy Changes. The test is geared towards the AQA exam board style syllabus.
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At the anode of a proton exchange membrane (PEM) fuel cell, which half-reaction occurs?
Which fuel can be used directly in a direct methanol fuel cell (DMFC)?
Which of the following is an advantage of using a fuel cell for stationary power generation compared to combustion-based generators?
Which fuel cell type is most commonly used in vehicles and small-scale applications due to its low operating temperature and fast start-up?
Which statement best distinguishes a fuel cell from a battery?
How can carbon monoxide (CO) in hydrogen fuel be reduced to avoid poisoning fuel cell catalysts?
Which statement is true about the energy change when hydrogen reacts with oxygen in a fuel cell?
Why does a fuel cell produce a continuous electrical current while fuel is supplied?
How does the efficiency of a well-operated fuel cell system typically compare to that of internal combustion engines for converting fuel energy to useful electrical energy?
What is “reformate” in the context of fuel cell systems?
Why can carbon monoxide (CO) be harmful to many fuel cells?