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Why a dry cell becomes dead after a long...

Why a dry cell becomes dead after a long time even if it is not used ?

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### Step-by-Step Solution: 1. **Understanding the Composition of a Dry Cell:** A dry cell consists of an electrolyte, which is typically a mixture of ammonium chloride (NH4Cl) and zinc chloride (ZnCl2), along with a zinc container that acts as the anode and a carbon rod as the cathode. 2. **Role of Electrolytes:** The electrolyte in the dry cell facilitates the movement of ions. Even when the cell is not in use (not connected to a circuit), chemical reactions can still occur within the cell due to the presence of the electrolyte. ...
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CENGAGE CHEMISTRY ENGLISH-NCERT BASED EXERCISE-Electrolysis, Batteries , and Rusting
  1. What is meant by electrochemical equivalent of a substance?

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  2. An aqueous solution of CuSO(4) is electrolyszed using Pt electrodes in...

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  3. What are the products of the electrolysis of aqueous solution of KF ?

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  4. Silver is conducting as such while AgNO(3) is conducting in molten sta...

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  5. Why Zn reacts with dilute H(2)SO(4) to give H(2) gas but Cu does not ?

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  6. What is overvolatage or bublle voltage ?

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  7. Which allotrope of carbon is used for making electrodes?

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  8. Name the electrolyte used in dry cell.

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  9. What would happen if the protective tin coating over an iron bucket i...

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  10. Which type of metal can be used in cathodic protection of iron agains...

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  11. Write the names of the electrodes used in fuel cell.

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  12. Name the electrolyte used in fuel cell and mercury cell.

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  13. State True or False Rusting of Fe is quicker in saline water than in ...

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  14. Why Cr is used for coating Fe ?

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  15. What is the role of ZnCl(2) in dry cell ?

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  16. Why a mercury cell gives a constant voltage throughout its life ?

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  17. Which types of cells are rechargeable ?

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  18. Why a dry cell becomes dead after a long time even if it is not used ?

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  19. Why lead storage can be recharged ?

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  20. Out of Sn and Zn which one protects Fe better even after cracks ?

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