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Why do leak proof dry cells have an iron or steel sheet covering the zinc cylinder?
  • a)
    It increases the potential difference between the anode and cathode
  • b)
    It acts as a barrier around the zinc cylinder which can develop holes during use
  • c)
    It makes it waterproof
  • d)
    It prevents the leakage of current
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Why do leak proof dry cells have an iron or steel sheet covering the z...
In a dry cell, zinc loses electrons and the zinc ions dissolve into the electrolyte. As a result, the zinc cylinder of the dry cell develops holes as it is used. To prevent the leakage of electrolyte through these holes, an iron or steel sheet is used to cover the cylinder.
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Community Answer
Why do leak proof dry cells have an iron or steel sheet covering the z...
Reason for having an iron or steel sheet covering the zinc cylinder in leak-proof dry cells:
Reasoning:
- The iron or steel sheet covering the zinc cylinder serves as a crucial component in leak-proof dry cells to prevent leakage and ensure the safe and efficient functioning of the cell.

Barrier against damage:
- The iron or steel sheet acts as a barrier around the zinc cylinder, protecting it from external damage or corrosion that can occur during use.
- This protective layer helps prevent the zinc cylinder from developing holes or getting damaged, which could lead to leakage of the cell contents.

Preventing leakage:
- By providing an additional layer of protection, the iron or steel sheet helps in preventing any leakage of the cell contents, particularly the electrolyte solution.
- This ensures that the cell remains sealed and leak-proof, preventing any potential hazards or damage.

Enhancing safety:
- The presence of the iron or steel sheet adds an extra level of safety to the dry cell, reducing the risk of electrolyte leakage or any associated accidents.
- This feature is essential in maintaining the integrity of the cell and ensuring safe usage in various applications.
In conclusion, the iron or steel sheet covering the zinc cylinder in leak-proof dry cells plays a critical role in safeguarding the cell against damage, preventing leakage, and enhancing overall safety during operation.
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Why do leak proof dry cells have an iron or steel sheet covering the zinc cylinder?a)It increases the potential difference between the anode and cathodeb)It acts as a barrier around the zinc cylinder which can develop holes during usec)It makes it waterproofd)It prevents the leakage of currentCorrect answer is option 'B'. Can you explain this answer?
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Why do leak proof dry cells have an iron or steel sheet covering the zinc cylinder?a)It increases the potential difference between the anode and cathodeb)It acts as a barrier around the zinc cylinder which can develop holes during usec)It makes it waterproofd)It prevents the leakage of currentCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Why do leak proof dry cells have an iron or steel sheet covering the zinc cylinder?a)It increases the potential difference between the anode and cathodeb)It acts as a barrier around the zinc cylinder which can develop holes during usec)It makes it waterproofd)It prevents the leakage of currentCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why do leak proof dry cells have an iron or steel sheet covering the zinc cylinder?a)It increases the potential difference between the anode and cathodeb)It acts as a barrier around the zinc cylinder which can develop holes during usec)It makes it waterproofd)It prevents the leakage of currentCorrect answer is option 'B'. Can you explain this answer?.
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