Electrolysis and redox
2 marks · HardDefine oxidation and reduction in terms of electron transfer. Give your answers using complete sentences.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Oxidation is the loss of electrons. Reduction is the gain of electrons.
Also accept: Oxidation occurs when something loses electrons. Reduction occurs when something gains electrons.
Common mistakes: Reversing oxidation and reduction definitions
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States correctly that oxidation is loss of electrons.
B2 · 1 mark · States correctly that reduction is gain of electrons.
Worked solution
Oxidation is the loss of electrons.
Reduction is the gain of electrons.