Section 4. Electrochemistry for Chemistry, IGCSE - revisedeck

4. Electrochemistry

A section of Chemistry, 0620

Listing 10 of 500 questions

The flow diagram represents a hydrogen–oxygen fuel cell. fuel cell input 2 input 1 output 2 output 1 Which row shows the inputs and outputs?

0620_s23_qp_13

MCQ

2023

Paper 1, Variant 3

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Which statements about a hydrogen–oxygen fuel cell are correct?

0620_s24_qp_11

MCQ

2024

Paper 1, Variant 1

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Hydrogen–oxygen fuel cells can be used to power vehicles. What is produced by the fuel cells?

0620_s24_qp_12

MCQ

2024

Paper 1, Variant 2

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Which equation represents the overall reaction in a hydrogen–oxygen fuel cell?

0620_s24_qp_13

MCQ

2024

Paper 1, Variant 3

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Hydrogen–oxygen fuel cells and gasoline are each used to power cars. Which statement describes an advantage of using hydrogen–oxygen fuel cells in cars in comparison with gasoline engines?

0620_s24_qp_23

MCQ

2024

Paper 2, Variant 3

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Water is formed when 48 g of oxygen combine with 6 g of hydrogen. What mass of oxygen combines with 2 g of hydrogen?

0620_w09_qp_11

MCQ

2009

Paper 1, Variant 1

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Water is formed when 48 g of oxygen combine with 6 g of hydrogen. What mass of oxygen combines with 2 g of hydrogen?

0620_w09_qp_12

MCQ

2009

Paper 1, Variant 2

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Which fuel needs oxygen in order to produce heat energy and which type of reaction produces the energy?

0620_w11_qp_11

MCQ

2011

Paper 1, Variant 1

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Which fuel needs oxygen in order to produce heat energy and which type of reaction produces the energy?

0620_w11_qp_12

MCQ

2011

Paper 1, Variant 2

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Which fuel needs oxygen in order to produce heat energy and which type of reaction produces the energy?

0620_w11_qp_13

MCQ

2011

Paper 1, Variant 3

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Questions Discovered

500