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Chemical synthesis — Question 30

Original QCE Vault practice · 1 mark

Q30 · Practice questionSimple familiar1 mark

QUESTION 30

In an acidic hydrogen–oxygen fuel cell, which cathode half-equation is correct?
(A)
2H2→4H++4e−
(B)
O2+4H++4e−→2H2O
(C)
O2+2H2O→4OH−+4e−
(D)
2H2O→O2+4H++4e−
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