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.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is unlikely to occur because the copper electrode typically undergoes oxidation, resulting in the loss of mass.
Step 2
B. Bubbles of gas will form at the copper electrode.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Bubbles of gas formation mainly occurs at an electrode where reduction takes place. Since copper is usually the anode in these setups, this option is incorrect.
Step 3
C. The concentration of silver ions in solution will increase.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is not applicable in this context, as the question focuses on the reactions involving the copper (II) chloride solution.
Step 4
D. The blue colour of the copper (II) chloride solution will become more intense.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is correct. As the electrochemical reaction proceeds, copper ions are deposited at the electrode, causing the intensity of the blue colour in the solution to increase.
