Discussion
How many moles of electrons are needed to produce one mole of chlorine from brine?
Answer: B
Correct answer: 2
The anode reaction is \[ 2\mathrm{Cl^-} \rightarrow \mathrm{Cl_2} + 2e^-, \] so two moles of electrons are needed per mole of chlorine - that is, two faradays, about 193,000 coulombs. The same two electrons produce two moles of caustic soda at the cathode, which is exactly the fixed ratio the first item in this topic describes.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development