When CuSO4 is electrolyzed in aqueous solution using copper electrodes, then the substance which deposits at the cathode is:
Correct answer: A. Copper metal
- A. Copper metal
- B. Copper ions
- C. Hydrogen
- D. Oxygen
Explanation
Since reduction takes place cupric ions present in the electrolyte gain two electrons and get converted into copper metal. Copper metal is deposited on the copper electrode since reduction reaction occurs at the cathode.
Last updated
About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
Practise Electrochemistry
696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A 10 volume solution of H2O2 means_______?
A reaction in which the same element is both oxidised and reduced is called
A solution of Sodium Sulphate was electrolyzed using some inert electrode; the products at the electrodes are:
Aluminum is refined in _ cell.
Any process of chemical decay of metals due to the action of surrounding medium is called__________________?