MCQEasy1 mark
7(c)
An aqueous solution of nickel (II) sulphate was electrolyzed using nickel electrodes. Observe the diagram and answer the questions that follow:
Which equation for the reaction at the anode is correct? 1 Ni ⟶ Ni²⁺ + 2e⁻ 2 Ni + 2e⁻ ⟶ Ni²⁺ 3 Ni²⁺ ⟶ Ni + 2e⁻ 4 Ni²⁺ + 2e⁻ ⟶ Ni
Topic: Electrolysis, electrolytes and electrode processes
Previous-year question practice database
Answer
Exam answer
(a) Ni → Ni²⁺ + 2e⁻.
Explanation
This is option 1.
In words
Ni → Ni²⁺ + 2e⁻.
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