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ICSE Class 10 Chemistry 2020 Solved Paper

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An aqueous solution of nickel (II) sulphate was electrolyzed using nickel electrodes. Observe the diagram and answer the questions that follow :
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Question : 85
Total: 86
Name the cation that remains as a spectator ion in the solution.
Solution:  
H+ will be spectator ions because Ni2+ gets a preferable discharge over H+.
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