Question detail

Which of the following is a consequence of oxidation at the anode during electrolysis?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Electrolysis

Question

A. Electrons are gained by anions
B. Electrons are lost by anions
C. Electrons are gained by cations
D. Electrons are lost by cations

Answer

Electrons are lost by anions

Explanation

Oxidation involves the loss of electrons. At the anode, anions (negative ions) give up electrons, so electrons are lost by anions.

Common mistake

Oxidation at the Anode

Students often confuse oxidation with reduction, thinking that oxidation occurs at the cathode instead of the anode.

Remember that oxidation happens at the anode where negative ions lose electrons, while reduction occurs at the cathode where positive ions gain electrons.

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For Representation of reactions at electrodes as half equations (HT only), which acid-base focus answer best supports this Unit 4.4 objective: (HT only) Explain that oxidation happens at the anode because negative ions lose electrons?