The diagram shows the electrolysis of molten lead bromide - OCR Gateway - GCSE Chemistry: Combined Science - Question 6 - 2021 - Paper 1
Question 6
The diagram shows the electrolysis of molten lead bromide.
The diagram shows the electrolysis of molten lead bromide.
Which row in the table shows the products for... show full transcript
Worked Solution & Example Answer:The diagram shows the electrolysis of molten lead bromide - OCR Gateway - GCSE Chemistry: Combined Science - Question 6 - 2021 - Paper 1
Step 1
Anode: What is produced?
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
During the electrolysis of molten lead bromide, bromine ions ( ext{Br}^-) are oxidized at the anode to form bromine gas (Brâ‚‚).
Step 2
Cathode: What is produced?
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
At the cathode, lead ions ( ext{Pb}^{2+}) are reduced to form solid lead (Pb) as they gain electrons.
Step 3
Conclusion and Answer Selection
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
Based on the products formed at the anode and cathode, the correct row from the table is option B: Anode - bromine, Cathode - lead.
Join the GCSE students using SimpleStudy...
97% of Students
Report Improved Results
98% of Students
Recommend to friends
100,000+
Students Supported
1 Million+
Questions answered
Other GCSE Chemistry: Combined Science topics to explore
