What is the primary component of a dry cell that acts as the negative terminal?a) Electrolyteb) Zinc containerc) Carbon rodd) Copper wireCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Understanding the Dry Cell Components
A dry cell is a common type of electrochemical cell used in many household batteries. It consists of several components that play vital roles in its functioning.
Negative Terminal in a Dry Cell
The negative terminal of a dry cell is primarily the zinc container. Here’s why:

Zinc Container:
- Acts as the anode (negative terminal) in the electrochemical reaction.
- Provides the source of electrons during the discharge process.
Electrolyte:
- Typically a paste that allows ion movement but does not act as a terminal.
- Facilitates the chemical reactions but is not a terminal itself.
Carbon Rod:
- Functions as the positive terminal (cathode) in the cell.
- Collects the electrons released from the zinc during the reaction.
Copper Wire:
- Used to connect the battery to an external circuit.
- Not part of the dry cell structure but crucial for delivering power.

Conclusion
In summary, the zinc container serves as the negative terminal in a dry cell because it is the anode that donates electrons during the electrochemical reaction. Understanding the roles of each component helps clarify how a dry cell operates effectively.

Answer

In a dry cell, the zinc container serves as the negative terminal. It is surrounded by a moist paste that acts as the electrolyte, allowing the chemical reactions necessary for generating electricity to occur.

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