Which one of the following is likely to occur?
A - VCE - SSCE Chemistry - Question 4 - 2006 - Paper 1
Question 4
Which one of the following is likely to occur?
A. The copper electrode will increase in mass.
B. Bubbles of gas will form at the copper electrode.
C. The concentrati... show full transcript
Worked Solution & Example Answer:Which one of the following is likely to occur?
A - VCE - SSCE Chemistry - Question 4 - 2006 - Paper 1
Step 1
A. The copper electrode will increase in mass.
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Answer
This statement is incorrect. In an electrochemical cell, the copper electrode typically loses mass as it oxidizes.
Step 2
B. Bubbles of gas will form at the copper electrode.
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Answer
This is also likely to be incorrect. Bubbles of gas typically form at the anode (oxidation side), not at the copper cathode.
Step 3
C. The concentration of silver ions in solution will increase.
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Answer
This statement is false. The concentration of silver ions will not increase as they are being deposited on the cathode during the reduction process.
Step 4
D. The blue colour of the copper (II) chloride solution will become more intense.
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Answer
This is the correct answer. As copper ions are reduced and deposited as solid copper, more copper (II) ions will be available in solution, enhancing the blue color.
